-DATE- 19641209 -YEAR- 1964 -DOCUMENT_TYPE- SPEECH -AUTHOR- F. CASTRO -HEADLINE- INAUGURATES VOISIN -PLACE- MEDICAL ASSOCIATION BUILDING IN HAVANA -SOURCE- HAVANA DOMESTIC RADIO -REPORT_NBR- FBIS -REPORT_DATE- 19641210 -TEXT- CASTRO SPEECH INAUGURATES VOISIN LECTURES Havana Domestic Radio and Television Service in Spanish 0245 GMT 9 December 1964--F/E (Live speech at Medical Association Building in Havana) (Text) Comrades: I come to this rostrum still deeply impressed by the amiable and eloquent words of Professor Voisin about his impressions of our country. Moreover, I am overwhelmed by the very generous things he has said about me. Tonight the cycle of lectures by Professor Voisin will be inaugurated--at least I have learned to pronounce his name will in French (laughter). Some comrades say "Voyseen." I believe it is "Vwasan." Soon we will all be familiar with the name. What I mean is that the cycle of lectures will be inaugurated tonight although the lecturers themselves will not start until tomorrow. Here the roles are going to be somewhat reversed. Professor Voisin expressed his difficulty in speaking at the ceremony of an official character--at a reception--and he said that he was worried and that of course he was not going to speak about politics because when scientists speak of politics the run the risk of saying many absurdities. Now place yourself in my shoes (laughter). I, who am a politician--what risks will I not encounter if I begin to speak on scientific matters! It is certain that the chances of a scientist making a mistake when judging political matters are much less than those of a politician who sets about making judgments of a scientific nature. Professor Voisin will begin to speak on the scientific field tomorrow. However, today we want to make some comments on the interest his works and his visit have for us, and at the same time consider the usefulness of his work for us--indeed, not in the scientific field, because that would be completely presumptuous on my part--but rather as a citizen who is concerned with the problems of his country, the problems of the people. We can say that scientists and revolutionaries share a point of view, because it can be said to begin with that every scientist is a revolutionary. What we have to achieve is to make every revolutionary a scientist. Another point of similarity between the sentiments of Professor Voisin and us is the human dimension he gives to science. In all his books, all his works, one can see that the human factor-man, human health, human happiness--is the basic objective of the works of Professor Voisin. Truly, man, human happiness, must be the essential objective of all revolutionaries. The works of Voisin have a very great interest for us. In the first place, I want to explain how these works came to be known to us. It is not something extraordinary. All of us have for some time become more aware daily of the need to develop technology. We become more aware daily of the importance that technology and science have in the present world. It may be said that the revolution needs science and it is clear that it was not unlikely that the works of Professor Voisin would arouse great interest in us from the first book we had a chance to read. Personally the first book that fell into my hands was "Dynamics of Pastures." At that time I was acquiring an every increasing interest in the problems of livestock--feeding of cattle--and the book attracted my attention by its suggestive title. We had a number of problems of an economic character related to the production of mil and meat, a problem of an economic character related to the feeding of cattle--among other things, the expenditures that this country had to make annually to satisfy those needs. Really, our milk production was based on the experience of countries that have a climate different from ours and that have different production conditions. However, that was the technology we were using--the little technology we employed on this matter--in questions of the production of milk above all, because it is known that meat here was produced extensively in large ranches. So we were presented with the need to resolve a problem. Every time the solving of the problem of more milk was mentioned, the figures for more feed always emerged. And along with the figures for more feed, there emerged the figure for more reserves with which to acquire that fodder and resolve the milk problem. There was even competition between the different plans and the different needs of the country. To tell the truth, the first time that I began to try to find a solution to this problem, I was also thinking of feed, but I was thinking of a feed solution on a national basis, that is to say, to produce here all the raw materials imported for the production of milk. I began to organize a small farm, part of which was devoted to legumes. I did not yet know what legumes were or which one was going to be adapted to conditions of our climate. I was thinking of the possibility of a type of alfalfa. Later, there was the idea of also planting some plots of corn in rotation with soybeans. I began to make estimates. I made estimates for several days and was planning high (production?) of milk. On one occasion I though of estimating how much mil would be obtained per pound of corn and how much per pound of soybeans and what part of that area would be devoted to corn and how much to soybeans, that is to say, to grain. In making the estimates I saw the amount of protein contained in a pound of soybeans and and the amount contained in a pound of corn, and the amount of soybeans and corn to be produced in those hectares, assuming that all the crops would grow perfectly well and production would be optimum. Moreover, I saw that the corn and the soybeans, which covered approximately one-third of the area, would produce approximately one-eighth to one-tenth of the milk. I asked myself where this milk was coming from, and I realized that the milk would come largely from the pasturage. I realized that the areas devoted to grass would, with normal yields, produce much more milk that the areas devoted to grains, presupposing optimum yields. Not only that: the area devoted to grass would produce much cheaper milk because the other crops had to be sown twice a year every year and pastures would be sown only once. That was how I acquired an extraordinary interest in the importance of pasturage and in making some tests with pastures. That is why the book "Dynamics of Pastures" came into my hands--I was interested. I will tell you the truth: contrary to what I though when I opened that book--that I was going to find great help--I initially experienced just the opposite. That book created a great number of concerns for me because for the first time I found myself confronted with a phenomenon which we had occasionally heard referred to by the peasants--the phenomenon of land poverty, of the years of poverty in pastures. This is apart from the fact that the first time I read the book I did not understand it very well, which was logical because the book was the third in a series of related books written by Professor Voisin. If I had read the first two books previously, understanding this book would have been easier. Nevertheless, that book opened my eyes to a series of problems that had never even entered my mind. I would say that those problems were, essentially, three. Of course, the one that made the greatest impression on me was the problem of the years of poverty in pastures, the fact that when the land is planted and a new grass is sown, the soil is very productive for the first years, but productivity begins to decrease between the third and fourth years and finally there is a long period of time in which productivity remains at 50 percent of the productivity of the first two or three years. That book defended the idea of the system of permanent pastures. I could not clearly understand that concept of permanent pastures. The book contained a broad explanation of an entire series of tests made, in which one could see the enormous advantage of permanent pastures over temporary pastures. The very concept of permanent and temporary pastures was not too clear to me at first. I confused the idea of natural pastures a bit with that permanent ones, and thought, we will have our problems anyway because we have many tracts of land covered with marabu (the weed dicgrostachys nutans, indigenous to Cuba--ed.), which we cannot count on, but which must be planted anyway. It was somewhat later that I understood the concept of permanent pastures, which does not mean natural pastures, although the permanent pastures are natural pastures, that is, areas where pastures have always existed. But the concept of permanent pastures does not necessarily stem from natural pastures. The concept of permanent pastures deals simply with the system of the exploitation of soil: whether the soil is or is not plowed, whether the pastures are plowed to grow other crops and returned to use as pastures again, or whether they are not plowed for agriculture in general--cultivated. That is to say, permanent pasture is simply the parcel of land which, once it is established as a pasture in a temporary manner or because it was planted, is exploited and not again plowed. Thus a pasture can be sowed, and this pasture can be maintained all the time, which is necessary under these conditions and according to the method of exploitation being carried out. None of the ideas which I started to acquire about any of these things--if the simple things and not the complicated--all of these things were very related. That is to say, the idea of permanent pasture is related to the system of exploitation. However, at last I began to understand what this concept meant, and essentially it was simply not to plow the pastures, not to resow the pastures. And this is where we find in essence one of the fundamental theories of Professor Voisin. It is that he is a decided partisan of permanent pastures rather than temporary pastures. Naturally, he defends this thesis with a vast quantity of material--experiences--and with a great abundance of data and arguments. One of these essential ideas is related to the microorganism of the earth, with the microfauna of the earth. Moreover, this very thing presents other problems and other views of agriculture in general, and especially those concerning pastures, of which there were practically no reports, and which was of special interest for agriculture. The reasons for the years of poverty in pastures is explained by Professor Voisin precisely in the relation of microfauna to the soil. What is this idea? It is that in permanent pastures ideal conditions of life are established for microorganisms and in general for the microfauna of the soil--to distinguish the really microscopic organisms from such small organisms and earthworms and the (enquitrelos--phonetic) in the soil. What happens when a permanent pasture is plowed according to Voisin's theory? The conditions of life for those microorganisms or the microfauna in the soil are changed. In the first years, there is great production because the organic material and the humus which has accumulated over many years are exposed to oxidation. Thus, the production of the first years, is improved, the great production of the first years is enhanced. However, after these first years have passed, a great part of the organic material has been used up. The earthworms and organisms in general live during the first two years because they feed on that organic material. However, when the third or the fourth year has passed, that microfauna has practically disappeared, or is considerably reduced. Professor Voisin points out a whole series of studies made in different countries which have done research on soil and counted the microorganisms--the microorganisms that are in the soil--and also the weight of its microorganisms--all this is very interesting and (word indistinct). I feel certain that interest will be awakened. In short, it shows how a considerable lessening of the amount of microorganisms is produced. What is the function of these microorganisms? They have a double function, a physical function and a chemical one. From the physical point of view, they penetrate the soil and aerate it. Professor Voisin calls them (vital?) workers. At the same time, they carry out a very important chemical function. They assimilate many of the mineral elements of the earth, because they go through the organic material and soil and through their organ and with there excrement they leave this material, these mineral elements in a form which can be assimilated by the plants. They carry out a double function, physical and chemical. Professor Voisin says that the living creatures which are in the earth weigh more than the livestock on the pasture when you include the weight of the microorganisms in the soil. Thus, when the conditions of life in the soil are changed as a result of plowing, the microfauna diminish extraordinarily. The microfauna of the earth not only diminish in quantity, but they also change in quality and consequently this factor, this element, which carries out the dual physical and chemical function in the soil is lacking and consequently the ground becomes packed. You have heard of the packing of the earth, which everyone thought was the result of the weight of the livestock, but, although the weight of the livestock can be influential, there is a packing of the earth even where there are no livestock. The real reason for the packing of the soil--and this in turn reduces the amount of moisture and oxygen in the soil--is simply the destruction of the microfauna which takes place with the plowing of pastures. That is the essential idea for me,and possibly for a large number of us, if not for all of us, it is an entirely new problem. Then a number of years take place called "years of poverty," and at the end of six or seven years, during the eighth, ninth, or tenth year, conditions for the microfauna slowly begin to be created anew, conditions under which the microfauna can develop once more, and little by little the problem of the packing of the soil begins to become less and as a consequence the following takes place: in permanent pastures production per hectare is greater than in pastures under rotation The first time that we took cognizance of this concept, our basic concern was how to resolve the problem of the years of poverty, for it was a very serious problem that when an area was planted and produced X amount of pasture, after the first years the number of head of cattle had to be reduced practically in half. This was a serious problem. However, the solution to this problem of the years of poverty did not appear to be easy What Professor Voisin says is that there are a number of methods or techniques, above all the system of exploitation of pastures--on this system of exploitation of those pastures depends on whether those years of poverty will last a longer or shorter time. Those years of poverty can be shortened, but they cannot really be avoided. Of course, under our climate conditions, we have the need to find out the ideal techniques for reducing that period to a minimum, and to discover how many years, more or less, under our conditions, those years of poverty would last. From the time when I first acquired an idea of that problem, most of my concern has been to do research to try to overcome this problem. I sincerely believe in and have hope in the special characteristics of our soil. Since the greater part of research has been done in climates different from ours--most of the research has been carried out in Europe and in other countries including New Zealand and Australia, where it appears there are certain factors of special characteristics--I have hope, based on the fact that our climatic conditions are different, very much different, that we will find a solution to those difficulties. For example, one of the solutions which Professor Voisin points out for the problem of the years of poverty is the addition of organic material. We have made some calculations, in the experimental pastures we have, that on each hectare of those which are in the system of rotating pastures, the animals deposit some 80 tons of organic material per year. That is approximately three times as much as is deposited by cattle in Europe. Therefore, we must investigate to see what the influence of this extraordinary quantitative increase in organic material added per year per hectare is on the microfauna of the soil and on the solution of the problem of the years of poverty. At any rate, in recent days I had a hope--I could see a factor which gave me great hope, and that was the day we visited the pastures of Artemisa. That pasture is eight years old and Professor Voisin said: "These have already passed though the years of poverty." However, in Europe, at the eighth year it can be said that the pastures are in the full poverty phase. What does this mean? Those pastures in Artemisa were even being subjected to intensive grazing, continuous grazing. What does this mean? That there exists the possibility, under our conditions and with the system of rotating pastures, that the period of years of poverty can be reduced considerably. But this is nothing more than a hope. However, it is enough to say that we had never thought of these problems, we had never heard any our technicians speak of them until for the first time the work of Professor Voisin appeared in Cuban and pointed out two most important facts: the importance of microfauna in the soil and the problem of the years of poverty. That book also points out, covers, and analyzes a number of very important questions about the evolution of pasture flora, but this would be too long to discuss here. I simply want to more or less give an idea of how interest in these problems was aroused in my case--for example, how I began to know Professor Voisin through his books. Subsequently I obtained a second book--"The Productivity of Grass." The book on productivity of grass is something which, from a practical point of view, is an invaluable contribution for us. It can be said that the study and application of the subject matter in the book can mean hundreds of millions of pesos for us every year. I speak of millions of pesos to give an idea of the economic importance which the application of proper technology can have to agriculture, because, of course, production can be tripled with the system contained in the book "The Productivity of Grass." Now, with that system plus fertilization, the present production of our pastures can be multiplied by six--by six! There is perhaps no branch of our agriculture which permits increasing productivity to such a high degree as do pastures. But the book "The Productivity of Grass" is a book for the agronomist--it is a book which is a great practical operation, it is a book whose information can be put to use immediately. Of course, it is a cause of satisfaction for us to be able to declare here that we have already experimentally applied the system preached in that book, and the results are incredible. Suffice it to say that, for example, were that system is being applied, in December, when the grass everywhere else is pale and the cattle are practically going hungry, the grass there is as in springtime. Suffice it to say that on seven caballerias, there are 250 cows. Suffice it to say that in that dairy, with a single milking, without consuming feed, and while nursing calves, they have higher production than the other dairies where the cows are milked twice, where the calves are fed powdered milk, where the cattle are given feed. This gives an idea of the importance and the interest this system aroused in us when we began to concern ourselves in a practical manner with these matters as a result of the great concern we had for feed and the need to resolve the problem of milk without making the country's monetary outlay grow year after year. The book "The Productivity of Grass" promotes the system of pasturing in rotation and it makes a truly scientific analysis of the system--and analysis of all the shortcomings of the system as well. In our country, an attempt to apply rotating pasturage was being made. It was not something entirely new. We had heard of it. Various people spoke of rotating pastures, but when we happened to read that book, we realized where the essential mistake lay. Curiously enough, the mistake we were making in Cuba was the same mistake which had been made in practically all parts of the world. It was the same mistake made in almost all the research centers of the world. That, precisely, is the essential contribution of Voisin's ideas to our agricultural technology, because that book showed us what that mistake was, and it consisted of what is technically called "equal idle time," which means that during any month of the year, during any season of the year, the field was permitted to lay fallow for the same number of days. That is to say, if they had--I think, for example, that they had 10 corrals in Camaguey and the cattle was there eight days, if I remember correctly--that means that the grass rested for 30 days during any month of the year--30, 20-plus, or 30-plus days. So then, that was basically the mistake: that the grass had to be given differing periods of rest according to the month to the year and the season. Why? Because there are periods in the year when the grass grows in 30 days and even in less than 30 days, reaching its optimum height; there are periods in the year when the grass needs twice the time; and on occasion, almost three times the time. And what happened? In the spring there was an abundance of grass, but when the fall was approaching--when the dry season was coming--and they gave it 30 days, every month they had less grass. Thus they indulged in the error of what Professor Voisin technically calls "untimely acceleration." What is untimely acceleration? They gave the field 30 days of rest in June and the food was sufficient. Those 30 days were given in July and August; but around September or November, they permitted 30 days and the food was not sufficient. Consequently, they get ahead. They bring out the cattle, instead of keeping them here six days they they keep them only three and then they are sent to another corral. The result is that when the grass needs more rest it gets less, because the effect is cumulative: three days, three days, and three days, to eight places and the time totals 21 days. The next time they leave them two days, the next time they leave then one day, because the lot barely produces enough for one day by that time. The result is that the time comes when it must be rested for one week: the result is that the pastures are liquidated. When we visited the Province of Camaguey, we spoke with the comrades who had worked on that. We asked them how they were operating the rotating pasture system. they explained that they were giving equal fallow time, and I asked them what was happening. They said that when the grass became scarce, they gave the cattle a shorter period of time in each lot, trying to gain time. Through Professor Voisin's book "The Productivity of Grass," it can be seen that that precisely was the essential mistake in rotating pastures. It led many people even to lose faith in rotation pastures. It is interesting that, for example, in the United States, where agricultural technology is quite advanced, they have only recently begun to understand the problems of rotating pastures and to apply solutions. That means that it can be said that e elaboration of a system which really makes rotating pastures one of the most perfect techniques for the exploitation of pastures is very recent. That precisely is the basic contribution of Professor Voisin to the question of rotating pastures. To us, this simple, clear, pleasant, and intelligible book is of extraordinary technical importance. there are at this moment practically thousands of persons in the country who are studying that book. Of course, some of these things will be explained with accuracy, systematically, in the lectures by Professor Voisin I am simply giving some ideas of a general character. Of the three books by Professor Voisin, it can be said that one of them, "The Productivity of Grass," is a book for the agronomist; the book "The Dynamics of Pastures" is a book which can be used by the agronomist, the botanist--that is, it is a book of more scientific character. The book "The Productivity of Grass" is a practical book, although it has a solid scientific base. However, Professor Voisin has a third book, the second in the series: "Soil, Grass, Cancer." It can be said that this is a book for farmers, but it is even more a book for doctors. And here is one of the most interesting aspects which as attracted out attention in the scientific works of Professor Voisin. It is the human aspect of his scientific research and the contribution from a point of view which is entirely new. It is entirely new to us, of course, and it is not only entirely new to us, it is entirely new to the whole world. It is an entirely new point of view, and it can be said that Professor Voisin, in addition to being a scientist, is a apostle of man, an apostle of the health of man and above all an apostle of preventive medicine. There are things in that book which, if someone has never meditated on that problem, are entirely new, truly incredible, and in some instances, traumatizing. That book analyzes the influence of the soil on man through the animals and through plants and it allows us to see the close relationship, the extraordinary relationship there is between human health and the soil where the food for man is produced, between human health and the techniques applied to produce the food of man. The title of that book "Soil, Grass, Cancer," is a suggestive title, suggestive because there are a number of diseases which are known and which it has been proved depend on food and the conditions under which that food is produced; and possibly there is much research to be made yet in that field. We have made a gift of a number of those medical books to medical students, and in general I see that it has aroused a great interest. This concept of Professor Voisin's, of the importance of the soil, of cultivation techniques in human food, is what has permitted him to form a new revolutionary idea which he defends vigorously, and that is the need for the closest relationship between the farmers and the doctors. Possibly, if someone had been told here that there existed a great relationship between the Agronomy School and the Medical School, he would have been surprised. It would have appeared to him that actually the School of Agronomy had nothing to do with the Medical School--and as Professor Landa is looking very serious, I think he must believe that I am forgetting veterinary medicine (laugher)--truly it can be said, between the agricultural-livestock sciences and medicine. Professor Voisin even favors--and he suggests the idea to us of organizing in our university--what could be called the school of human ecology. In practice, it would be dedicated to the study of the influence of environment on human health. Truly, in spite of the fact that each science today tends toward specialization, without any doubts of any kind, medicine and agriculture are called upon to have an ever closer relationship. When we organized the first schools of soils and fertilizers, we told some comrades that in the future medicine and agriculture would be based on the soil. It could also be said that they would be based on biochemistry. This relationship between agriculture and medicine also has to do with a concept of medicine that is different from the one we traditionally have about medicine. Traditionally, we have a therapeutic concept of medicine,and this concept, the idea of Professor Voisin, is related to preventive medicine. Professor Voisin says that we can make extraordinary progress in preventive medicine because we can work without the interference of commercial or mercantile factors in matters concerning health. This means that we have the possibility of developing a medical system that would avoid the necessity of a man going to the hospital--not curing the man in the hospitals, but avoiding the necessity of the man going to the hospital. Of course, we had heard mention of preventive medicine, but the idea of preventive medicine, to us, did not go beyond the problem of vaccine, massive vaccination, boiling water, adopting hygienic measures with regard to milk and food. But we never heard "preventive" mentioned in relation to the biological quality of the foods we eat. That is to say, our medicine, particularly after the Revolution, was oriented toward the prevention of diseases, but in one aspect. The basic idea of the preventive medicine we are speaking of here is precisely preventive medicine based on the biological quality of the foods consumed by man. When had we heard anything about that? When a dietitian recommended a milk, meant, or vegetable diet to a patient, he indicated amounts--so many pounds of milk, so many quarts of mil, so many ounces or pounds of vegetables. When he told them to eat so many tomatoes every day, never did any dietitian say to eat tomatoes of such biological quality or to eat mean or milk of such biological quality or to consume fruit of such biological quality. We all feel that a tomato, any fruit, any food is measured by quantity, that is importance of influence on health is measured in quantities--by pounds, ounces, or grams. It was through the books of Professor Voisin that we first found, saw, read, and listened to a different point of view. It was the first time in my life that I had heard it said that one tomato might have three times as many vitamins as another tomato, that one variety of apple could have up to 15 times more vitamins than another variety of apple, and that depended on the technique of cultivation, that depended on the system--of course, not in the example of the variety, but in the example of the individual tomato. One tomato can have three times as many vitamins as another of the same variety, depending on the way that tomato was cultivated. That was the first time we were able to understand that our future contained the possibility, under the conditions offered by our social system without the interference of commercial interests, of establishing production that would take into account not only quantity, but quality as well. That was the first time that we had read, or saw, or learned that one food could have larger quantities of microelements than another food and that both those microelements and those vitamins were of vital importance to human health. To us, really, all that was truly a revelation. The importance of this is related to the fact that the human organism defends itself, for example, from the attach of diseases through a defensive system that nature has given it. There are generic defense systems and specific defense systems, defense systems against all diseases in general and defense systems against specific diseases. And about these problems, which are more interesting all the time, there is something that the physicians already--this system of the mechanisms which nature gives living creatures with which to defend themselves from external attacks--there is a question that is already beginning to concern many of our physicians: it is the problem of the immunity of certain germs to antibiotics. For example, any of our doctors in any of our hospitals has the problem that a series of germs have already become resistant to the effect of the antibiotics, and already one of the first things done before apply antibiotics is to make an analysis to see what antibiotic is effective for this germ. On occasions, out of a list of some 10 antibiotics, it is found that the germ can resist eight. What does this mean? It means that the organisms, simple or complex, have mechanisms of adaption or mechanisms of defense to the extent that the contagious diseases are already starting to become a problem once more. Why is this? Essentially because the abuse of antibiotics, the indiscriminate use of the antibiotics, has been reducing their effectiveness, because antibiotics are prescribed for anything or a person prescribes an antibiotics for himself. Of course, doctors understand this problem, which is very clear to them: the influence commercial interests had in these problems, commercial advertisement, uncontrolled sale of antibiotics hormones, and a number of medicines for commercial reasons. This has already caused great damage to health and it has caused especially great damage at this time when antibiotics, which are tremendously effective at first, become practically useless. Doctors are already worried about how to use antibiotics. In operations they already do not use them in a preventive manner, and they are controlling the application of them by applying them only in cases where it is strictly necessary. However, in short, nature endows living beings with means of adaptation and the human organism has no less of with means of defending itself against disease. Those means of defense, as explained the book "Soil, Grass, and Cancer," act in place of certain elements, certain enzymes, which normally are those defensive means. To be able to operate, it can be said they need raw material. The raw materials are vitamins, proteins, microelements; and it is exactly there that the immense field for research is opened. It is exactly there where Professor Voisin points out the path for the development of preventive medicine, which consists precisely of giving the organism all the elements which the organism needs to develop its own defense against the attacks of foreign agents: bacteria and viruses. Some may ask, "What does agriculture have to do with this?" That is very simple, incredibly simple. There is a book, almost all the books--Professor Voisin has a book which has not yet been translated into Spanish, called "The New Scientific Laws for the Application of Fertilizers," in which he explains the mechanisms through which plants absorb elements, produce vitamins which the human organism later assimilates. He points out a problem, a very serious problem throughout the entire world today. All of us have heard of how advanced agricultural techniques are all over the world, and they tell us, "In such a country they get so many metric quintals per hectare of such a product," and practically all the statistics of the world point up the progress of agricultural development by the quantity of crops produced. Essentially, it can be said that in all the countries of the world, particularly in the most advanced, agriculture is based essentially on quantity and not quality. They are concerned with adding a microelement only when the absence of that microelement affects quantity, but they never worry about adding a microelement when its absence affects quality, because quality has never been considered. It is exactly this problem which Professor Voisin points out, and he sounds the alarm against what he considers one of the greatest problems of present-day civilization, against what he calls "hidden hunger. He says that it can do as much damage as the other which is not hidden. He believes that in many countries with a high standard of living, with a great agriculture development, they are having hidden hungers that result from the lack of certain essential life elements in the food being produced. He explains why those deficiencies occur. There is a balance in the soil, in the natural state of the soil there is a balance. Man upsets that balance. He plows the soil. He begins to produce large crops. To produce larger crops, he uses certain varieties which have a greater ability to metabolize the elements and above all uses tow fertilizers, particularly nitrogen--a fertilizer which stimulates the growth of plants, which increases considerably the amount of food produced. He points out that of the many elements that the plant needs and which man needs--does not finish thought--ed.) Because there are elements which are essential for man, for example iodine and sodium, which is an element necessary for man. I believe that cobalt also is an element necessary for man. However iodine is not considered essential for plants. It is not believed that sodium is necessary for plants. There are other elements which are necessary for plants and are not necessary for animals. Practically all elements which are necessary for plants are necessary for animals, are essential for human life. When a man upsets the balance of nature--cultivates--he returns only four elements: nitrogen, phosphorus, potassium, and calcium. The other, minor elements and some other microelements, larger elements, are not returned. Notice that almost all the formulas for fertilization which are known in the world consist of three figures: 10-20-12, 15-10-60, 6-8-10, and so forth, an infinite number of formulas. They refer principally to three elements; nitrogen, phosphorous, and potassium. Naturally, other elements like sulphur and calcium are mixed in these fertilizers, but in the main only five or six elements are involved. All these elements are being constantly extracted from the soil and only three, four, or five are being returned to it. With modern technology, large crops are raised. However, only three or four elements are returned to the soil. Commercial food producers return whatever permits them to obtain the largest amount of products. As a consequence, an imbalance in the soil is created. The food begins to contain less and less of the elements essential to life. But that is not all: use of fertilizers, which Voisin considers one of the greatest inventions of man--without which man would find himself subjected to hunger--is not done in a scientific manner. The fertilizers are not being used, but abused. He has studied that problem and has established a series of laws which he calls scientific laws governing the application of fertilizers, which essentially boil down to the fact that excess fertilizer or insufficient affects the amount and can also affect the quality of food. How are fertilizers applied in agriculture nowadays? On the basis of commercial formulas, advertisements. However, with these fertilizers, food for humans is being produced and human health will depend on the quality of that food. What happens? Indiscriminate amounts of fertilizers are being used. What happens to the elements of the soil which feed plants, which feed man? Only those elements need to be in the ground in specific amounts. The amounts of these elements must exist in the land, must be in a balanced quantities, and be at the disposal of the plants. When there is an excess of one of these elements, then there is a clash between that element and another element, and a deficit arises. For example, the soil might contain a specific element in sufficient amounts for the plant; when excessive amounts of another element are added to that soil, the former element become nonassimilable. Perhaps many of us have never heard a word of these things. Other things follow; for example, an excess of potassium makes calcium, sodium, and magnesium nonassimilable. An excess of potassium also makes boron nonassimilable. Now, magnesium is an essential element; magnesium is very important for human cells, human metabolism. It is also quite important for the manufacture of vitamins by the plants. When an excessive amount of potassium is applied to a soil, a plant. a crop, grows in which the proportion of magnesium has decreased considerably. Only one element--potassium--affects several other elements. The amounts of sodium, calcium, and magnesium in a plant, and phosphorous, another element that is in wide use--an excess of phosphorous causes a deficiency of zinc and copper. An excess of calcium caused a deficiency of manganese; an excess of nitrogen causes deficiency in copper. In other words, the continuous application of nitrogen--acid soils cause a deficiency in phosphorus in plants and a deficiency in molybdenum. Now, a deficiency of any of these elements causes a deficiency of specific vitamins in the plants: vitamin C-manganese; vitamin A--amounts of carotene, which is the basis of vitamin A, decrease when the plant is deficient in sodium. Phosphorus, for example, or copper--I do not know which--is quite important in the manufacture of vitamin B-12. I am not sure whether this might be manganese. (Aside--"Could the professor? Cobalt, yes? For riboflavin? Who is a medical student around here?" Some one answers. "Then that is deficiency of manganese; no, cobalt. And mangenese, what deficiency does it produce? No one knows." Audience laughs. "We must find out.") Are you medical students? You are veterinary students? What we have here are medical professors. We have a few doctors too (audience talking). I have seen a few around; I have seen the dean of the Medical School--Comrade Dorticos. There must be a few more. They are invited. (Someone speaks in French; a period of silence follows) This is a very important matter. Who takes these factors into account when producing food? Who takes these factors into consideration when growing vegetables which are consumed by the people? Generally speaking, this factor has not been taken into account in any part of the world. (Castro speaks to someone in the audience. "It broke down? What happened? We had not though of that difficulty. Can you give the professor a cup of coffee?" Silent interval) (Someone else speaks) Professor Voisin wanted to tell the Comrade Premier that on hearing this explanation, he things that the Comrade Premiers the best of his pupils, the best of his students (stormy applause). (Castro resumes) I thank Professor Voisin. Quite simply, I really consider myself a pupil who still has much to study in these books and also I feel like a nervous pupil here in the presence of the professor. Really, I am trying to explain the reasons, the factors, the viewpoints, which most aroused my interest, as I am sure that they will arouse the interest of practically all of the people. We were waiting for the visit of Professor Voisin so that he could serve as the authority. Some of these books are extremely interesting to all of us from all viewpoints, from the medical, the human, and the economic aspects. We were awaiting just this lecture so that though it interest might be aroused which would direct attention toward all these problems, all these subjects, and all the material of scientific nature which is going to be published in our periodicals and our (word indistinct). I have not the slightest doubt of two things: first, that in this problem we have a great, an extraordinary field of extraordinary human importance; and second, that we have the ideal conditions to advance in this field as far as we want to. In a sense, we are working on these matters which we were pointing out here. Within a few years there will be tens of thousands of technicians who will fully possess and fully control this knowledge. We will not move toward development of an agricultural technology that seeks quantity alone. We will seek quantity and quality our food. In the future we will have another standard to measure the value of our products. That is to say, so much of a product of such and such a quality, because actually in our country all the conditions are present to make it possible for us to pursue this aspiration. At first, our concern was also to increase production on a quantity basis. But the technique that produces the greatest quantity is not always the one that produces the best quality. Producers who have commercial aims are concerned with quantity and, when an element affects quantity, they apply it. For instance, it is know that--the professor presents examples of this--for instance, in the cultivation of onions, certain elements make possible a better appearance a greater quantity, and a higher price, simply because of the external appearance. So these microelements are used. When the lack of a microelement does not affect the quantity of the product, commercial framers are not concerned about it. A technician training program is now underway in order that a technician may be available for each parcel of land, practically each farm, each lot of land. The day will come when each lot of and will have its technician, a well-trained technician who will have this philosophy: to produce in quantity and in quality. Moreover, these technicians will be aided by all the means, all the laboratories which may be necessary. They will be supported by all the necessary research. It can be said that even today, in many products, it would already be possible to follow this policy in producing in quantity and in quality. But there is no doubt that there is a great field for research because we already know, for instance, from these same books and from research which has been done, of the antagonism between some elements and the influence of some of these elements on certain diseases; but indubitable there remains much to be known, much to investigate in this. who knows how many more things can be ascertained, can be investigated, by working in this direction? Indubitably, there is already a series of products in which the matter of quality could well be attended to. But a day must come when each and every one of the products consumed by the population will have a maximum, optimum biological value. This must be the aspiration of our agricultural technology. There are now many schools and technological institutes for workers and student. Some of these technological institute are represented here. In the next three months, we shall have some 7,000 students--including workers and students, workers who will be studying--some 2,000 students from the secondary schools and some 5,000 workers. They will already be studying these matters. Moreover, new teachers are being trained; we are acquiring the laboratory equipment. These institutes are going to have all the necessary means. Next year we are also going to have a center of scientific investigation. Also next year, we are going to have an animal nutrition center, ad we are also going to carry out an intensive dissemination campaign on the whole problem. We have acquired, so far, nearly 20,000 books on these three subjects: productivity of grass, soil and grass (rotation?), and dynamics in pasturage. Professor Voisin has had the kindness to give our country the rights to publish one of his books, the one that deals, as I said, with the scientific laws governing the application of fertilizers. he told me that the rights he granted us should be used to compensate for the damage caused our country by Hurricane Flora (long applause). He has also granted us the rights, for the same reason, to the 10 lectures he is going to deliver--lectures, as he has explained here, on which he worked hard for months. These lectures have already been translated and printed in book form in our country. I have been told that tomorrow copies of the lectures are going to be distributed either at the beginning or end of the lecture. So all the guests will receive one of these books. Concerning Professor Voisin's other works, of which some 1,000 copies have already been distributed, the Revolutionary Government proposes to acquire considerable quantities of them so they may be distributed in the schools, farms, and above all at the different levels of technical studies related to the field of agriculture. However, it may very will be that Professor Voisin has not been able to realize yet the other benefit we have received from his works, that is, the benefit to our economy and people. It is unquestionable that he application of rational pasturage to agricultural-cattle production means a technical step forward of considerable importance and offers unlimited possibilities for increasing milk and meat production. Moreover, this can be done at a cost that cannot be compared to the cost involved in the past for producing one liter of milk with imported fodder. Suffice it to say that, by using rational pasturage, the cost for feed to produce one liter of milk is less than one cent. I mean the cost of feed not counting the milking of the cow, the installations, and all those things. The cost of imported feed to produce one liter of milk is between four and five cents, which would have to come from our exchange currency. We are now engaged in our first experience with this new technique, and in such matters the problem of economy is always foremost. I am going to take this opportunity to reveal a curious thing to you. Two technicians of great prestige--a Scotch expert in the science of foods a few months ago and now Professor Voisin--have stressed the question of expenses and have advised us to be careful about them and to economize. This is something I have not yet heard from any of our comrades working in this or any other field of our economy. This fact engaged my attention, for both Preston and Voisin give the matter of expense a great deal of thought. I was able to appreciate this when we went to Aretmisa. He continually and insistently advised us to consider expense, to reduce the cost of production. Both these men always keep in mind the problem of costs, of economy, while our own technician do not do so. Let us speak the truth. We could even say that what these experts advise is part of economic science. I told you that Professor Voisin advises us strenuously to be observant, to analyze things well, and to go slowly. One of his other warnings to me is that we be careful. Well, the first results of the practical application of this method have been incredible. There is great enthusiasm for it, and in practically every province the comrades are working at it. However, we still have a great deal to do, and above all a great many things to investigate. I think that one of the most attractive thing about Professor Voisin's literary works is that they are very analytical and that possibly they may contribute to developing something we all need because all of us are, to a certain extent, under the negative influence of our previous educational system. All of us were educated and trained with antedeluvian teaching methods. What is the principal failure of those methods? It is that the young student's initiative was not developed. The student's analytical ability was not developed, nor was his instinct to observe everything, to investigate everything, to question everything, and to analyze and investigate things. The training that we received beginning with our first grade had no relation to this development of inquisitive, analytic thinking and to the spirit of observation. We had to learn everything by heart: the rules of arithmetic, geography, history, grammar, arithmetic, everything. We can see the results today in many of our technicians. We can see a tremendous lack of initiative; a lack of the spirit of observation; a lack of analytical ability. This is far from being an adequate kind of teaching. This kind of education is apparent in almost all the adults in our country. It is necessary to develop in every student a spirit of observation, the ability to analyze and investigate. That means that we must not simply accept things without thinking just because it is written in a book or told to us. One of the things we shall find in Voisin's books is that they do not claim to have solved an infinity of problems; they do not claim to have solved many of the problems. One can say even say that they constantly raise problems and stress the need to solve these problems. They stress the need for investigation. They point out the limitations in our current knowledge. They point out the great mistakes made in our production technique. It can also be said that they constantly urge us to improve and cast doubt on many things in a spirit of criticism--on things, moreover, that have been long accepted. When these books got into our hands, we had read some books on problems of cattle-raising, soil, and many other things, including North American books. I must say that the North Americans have very good books indeed. Many of these books have been translated into Spanish and acquired by us. However, there is one characteristic, one great difference between Voisin's work and those books. WE can say that the North American books have a static concept of nature. They are based on formulas and feeding tables. None of these factors of human nature is analyzed; none of the questions concerning the quality of products is analyzed. they are books that evidently present nature in a static form. They do not state the amount of protein in each type of fodder. They do not point out the adequate feeding formula for each type of cow according to the quantity of milk they produce and their size. That is, they present to us a completely static and dead nature. But one characteristic of Professor Voisin's work is its dialectic approach to nature. I am going to say that Professor Voisin is engaged in politics and I am not going to link him with any philosophical theory or political party in any way. Were I to do so, he would immediately chide us for lack of hospitality What I mean to say is that in my opinion his concept of nature is absolutely dialectic. AT no time does he present a static nature. He presents a changing nature. He presents a dynamic nature. He is always analyzing the relations exiting between one and another factor. He constantly tells us that it is very difficult to analyze the effect of an isolated factor on something because each factor works jointly with a series of factors. In other words, the change in one factor is enough to produce a change in the entire chain of factors and in the results given by these factors. In his entire work on pasturage, the pasturage flora, and the development of pasturage flora, he is constantly explaining to us a dynamic and changing nature. He is constantly explaining to us how each factor intervenes to produce certain results. At the same time he bears in mind all the laws of nature and the results derived when one of these laws is violated. His books show us a world on the move, nature on the move. We have heard about dialectic materialism and so forth and so on, but, sincerely, when one reads these books, he sees nature in action; he sees the laws of dialectics in action; he sees the laws of matter in action. Among the many useful things that we can get from a study of Professor Voisin's books is exactly that concept of nature, that spirit of analysis and investigation. For example, the Morrison tables on feeding and almost all the books on fertilizers and soil mention the amount of protein in greens, corn, soya, and so forth, yet for the first time Professor Voisin says that all these formulas which give the amount of protein present in certain foods are conventional because they are the result of multiplying the amount of nitrogen by the approximate figures of 6.25 in an analysis. Voisin points out that there may be certain amount of nitrogen in a certain pasture land but suggests that the plants in it may not have assimilated sufficient nitrogen to produce much protein. Yet if a simple laboratory analysis is used here, one comes to the conclusion that the animal is getting such and such quantity of protein. However, before we begin forming doubts along this line, we are blindly believing in a laboratory analysis. We are sending things to be analyzed in a laboratory and we are receiving the tests and believing that those analyses are conclusive. Then we are told not be believe in those analyses because their value is quite relative and insignificant if not accompanied by biological analysis--in other words, the result produced in animals by a specific type of feeding. These books teach us that biological examination--biological analyses of results--must always complement the chemical analysis. However, in reading other types of books we have come to accept as an irreversible truth the fact that such analysis could tell us the amount of protein continued in a certain feed. This teaches us to abandon the dogmatic position in science, to subject all statements and all things read to analysis, to challenge many things because we must not forget that science has advanced precisely at those times when it has shed doubts on a series of truths considered irrefutable. Our students must develop that critical spirit of investigation, observation, analysis, that dialectic conception of nature. There fore, I was saying that we have much to learn from these works. We are going to receive great benefit from them. On the other hand, for our country, our people, whose interest in science and technology is awakened more and more, we can say that these lectures are a symbol of the direction being taken by the country and an indication of the interest awakened by science and technology. The fact that the more than 400 invitations extended were not sufficient for all persons who desired to attend this opening indicates the degree of interest aroused, for which we must thank Professor Voisin. We must thank him for the attention and interest aroused by his visit. His presence among us helps us to increase interest in technology and science. Beginning with his visit, we will start to disseminate certain works, beginning with his lectures, in the newspapers. We have acquired approximately 1,300 copies of each of his books. We will probably acquire some 15,000 or 20,000 additional copies. However, this will still not be sufficient. If we have newspapers that reach 200,000 or 250,000 copies; if we publish each of these lectures in the newspapers and these issues are read in the fields, many people will be able to gradually compile their own books. Thus our newspapers will have a new function, not simply to publish news and information, but to disseminate technical and scientific matters. This is an unlimited prospect, for there is a very interesting development involved. When any citizen is introduced to any of these subjects, he immediately becomes aware of the need he has to study other things. For example, we have distributed a quantity of books. Books on soils and fertilizers, productivity of grass and soil, grass and cancer, are among those books distributed among the comrades of the party in the province. We have also distributed another book. I think it is called "Soils and Their Improvement." We have not distributed other books. We know that as they start studying the books on soils and these technical books, they will start feeling the need to study botany, chemistry, mathematics, biology. However, we prefer that that need arise. In school, we were told a priori: "Study that book." We did not like the book. We did not know what purpose the book served. We were given for example a book on biochemistry, and we would say: "What a boring book; what is it for?" Many times, later in life we learn the purpose of these things. Above all, when anyone begins reading a technical book, he constantly finds a mathematical, chemical, botanical formula and starts to become aware of his limited knowledge and begins to feel the real need for studying the so-called basic sciences. I know, for example, that in basic sciences biochemistry is the terror the students in the first year of medicine. However, I know that some of the comrades have started to look for an agronomist or a chemistry professor before they received these books. In other words, they have begun to feel the need very soon and have organized circles for the study of chemistry. I think that we have sent the comrades a book on botany. They will feel the need for studying these basic subjects and the study will develop. We can use the dissemination procedure for the distribution of study material which will reach all the corners of the country through magazines and newspapers. We are going to open this program, thanks to the kindness of Professor Voisin, with his lectures. In other words, Professor Voisin's lectures will be published in the newspapers. We are going to divide the newspapers for covering different subjects. In all corners of the country, agricultural workers will have an opportunity--and all those persons interested--and in these matters other persons aside from the agricultural workers will become interested--because it is possible that many persons, when they begin to read about these problems, will see angles and aspects of production and technology which they had never thought about, and I am sure that the interest of many persons in the cities will be aroused in this connection. It is even possible that this will help us somewhat to return our sights to the fields, because in the future (as heard--ed.) everyone looked toward the cities--from the fields toward the cities. We must return our sights toward the fields. Professor Voisin points out that some of the causes for the decadence of civilizations are precisely those great urban concentrations. He explains that just these great urban concentrations have led to the exhaustion of land, to the production of vitamin-deficient food. He said that through the sewage system of Rome, Babylonia, and the great cities of times past flowed the fertility of soils. As soils become exhausted, a physical and moral degeneration of the inhabitants set in. Fertilizers were not known at that time. On the other hand, they did not have the problem being faced today by modern civilization--problems of excesses and inadequate use of fertilizers. Thus, to certain degree, we have leaned to great concentrations in the cities. We have to return our sights to the fields. This does not mean that we should move now to the fields, but for the time being we must check that current and sent many city youths to the fields as technicians. Therefore, we are glad to hear that many people from the cities are joining the Soil and Fertilizer School and the School of Veterinary Technicians, because in this manner the city will return people--as technicians--to the fields or supply thousands of technicians for the fields. These technicians will go to the fields to make them produce under quite different conditions. We sincerely believe that our country has an extraordinary future. That future stems from the possibility of developing a planned economy, from the absence of contradiction between certain interests which might prevent us from applying scientific laws to our work, from the absence of commercial factors which might prevent us from applying a certain policy, such as the one applied today in medicine. Where, for example, today each drugstore is not interested in pushing a certain antibiotic or hormone and where all medicines are sold through controlled means, medial prescriptions. In other words, we have no social contradiction that prevents us from carrying out a program of this nature. That program is being carried out. That program has unlimited possibilities in our country. As we know that, as we are aware of it, we are able to appreciate the meaning of technical aid, the meaning of the visit of such a distinguished scientist as Professor Voisin. He says that he was surprised by presence at the airport. In fact, this is not exceptional because we are quite grateful that Professor Voisin should incur the inconvenience of making a trip from France to visit our country and accept our invitation. I feel that that he deserves much more, as he has made a greater effort. We sincerely and greatly appreciate his visit; we value it because of strictly technical reasons, because of strictly scientific reasons; and it is in this vein that we appreciate his visit. We desire to gain no political advantage; fortunately, he understands well how our people act--their vitality and the absence of political intention, the absence of the slightest effort to gain political advantage. We are interested in his visit as a scientist; we are grateful and appreciate his visit extraordinarily because of its scientific and technological value to us, because of the aid his visit will contribute. We are extraordinarily thankful for his visit, as we are extraordinarily grateful for the years he has devoted throughout his entire life to research and scientific work, whose usefulness is seen. Perhaps the only way we can compensate or reward Professor Voisin is through the satisfaction a scientist must feel in seeing how these ideas to which he has devoted his life--how his research becomes or can become very useful and used by a country such as ours; also through the satisfaction he must feel in seeing that his efforts have not been in vain and how any scientific endeavor is called upon to benefit millions of human beings without restriction of frontiers, continents. Thus the efforts of a scientist begin to become useful to all of us who are located a long distance from his country, his continent. This also teaches us that study and scientific research can never have egotistical ends, cannot have personal or national interests as their purpose; that scientific research has a much broader frontier, a more generous and noble field; that scientific research can be useful to all men in any continent, country, or corner of the earth; that - research is dedicated to helping all humanity; for today scientific achievements reached anywhere in the world can be useful to us just as today radio and television, which we did not invent, and the electric light, which we did not invent, are useful to us. So too, when we devote our efforts to study and research we must think that what we achieve along this line will help not only our fellow citizens, but human beings in other countries, continents--above all, the research done and successes reached in a country which has our climate, because we must not forget that the vast majority of underdeveloped countries of the world--that the poorest countries in the world, the countries where more hunger and poverty prevail--are located in geographic latitudes similar to ours. Because if the technology, and above all agricultural technology, advanced in Europe, in the United States and other countries located in other continents, has not had similar development in countries with our type of climate, we can achieve technological successes that can be of inestimable usefulness to other underdeveloped and poor countries located in the same latitude as Cuba. We must consider the living conditions in many of these nations, the difficulties they face, the need for developing this technology in a climate like ours, the usefulness it can have for all of them. We not only aspire to develop an advanced technology, but we can aspire also to develop it in a new dimension, in a dimension that does not measure only the quantity, but the quality, in a much broader and profound human dimension. It could be said that it is possible for us to become the first country in the world in the development of agriculture according to new concepts. Professor Voisin has advised us to study the possibility of establishing a school of human ecology, and if we did that, we would be the first country in the world in which such a school was created. This, of course, involves making the agronomists, doctors, and veterinarians agree. Professor Voisin says that this is very difficult (crowd laughs). But we believe and are quite happy that the deans of those three schools are herewith us, and I believe that it could be difficult even under our conditions, as I have heard tremendous discussions among agronomists and veterinarians about the boundaries of the two schools (crowd laughs). When I heard such heated discussions among the agronomists and veterinarians, the only thing that I could say was: "Try to solve the boundary dispute through peaceful means and without recourse to violence" (crowd laughs). At the same time, we must try to conciliate and set boundaries and to determine what factors join the schools of medicine, agronomy, and veterinary medicine. We must take the advice and idea of Professor Voisin into account and really study the possibility of developing, in the future, a school which covers those sectors of science and the university. That idea will not fall on deaf ears here. We will try to study that possibility. For my part, I am already trying to contribute to the idea and have given each of the comrades of the fourth year in the medical school--I began with the fourth year--the book on soils, grass and cancer. I made them promise to read it and told them that I would give then an examination on the book, that I would take a sampling to see if they had really read it. In fact, they received the book very enthusiastically. We plan to see that one out of every 10 medical students, from the fourth year on, devotes his time to research. They can even conduct very interesting research projects while they are practicing rural medicine in the fields. We will also select some of the graduating doctors for the scientific research center (and us?) basic sciences professors. Here too, we must try to achieve coordination between the university, the Scientific Research Center, the Institute of Animal Nutrition, and the Public Health Ministry so that all understand the importance of medicine, the need for training new cadres, for research, and thus prevent a hypertrophic development; for everything must be developed proportionately, and those resources we must have be disturbed among those different fronts. We must establish the closest cooperation between these institutes and organizations. The Scientific Research Center will be operating by the middle of next year. An information center will be established within the Scientific Research Center. This information center will send each doctor in each specialty a list of all magazine articles published which interest them, and this establish closer relations and prevent the creation of factions. Our aim is to crate teams and establish cooperation among the teams so that all help each other. Therefore, with two good research centers, much interest is being aroused in research next year. I am not going to mention the viewpoint of the technicians we have for research because we have several of those technicians, who have recently graduated from the university and who are organizing there teams for research. I take this opportunity because I see many of the comrades from the medical, livestock, and soil schools, from INRA, and from different organizations. We even have a group from the Hydraulic Institute here. Practically everyone showed interest in proposing the need for this relationship and coordination, so that we can take the opportunity presented to us and realize that aspiration. Today, few nations in the world have the privilege that is ours. We have a country where everyone has learned to read and write, where almost one million adults are studying, a country which is the master of its resources, the master of its lands. Few countries have the privilege that is ours today, and we must know how to take advantage of it and I am sure we will take advantage of it. I hope Professor Voisin will forgive me for this lengthy talk. On behalf of all the people and all comrades present here, who come from all soil schools and from various university schools and production front centers and who desire to hear this lecture with much interest--on their behalf we thank him. We also thank His Excellency and the French ambassador for his kindness in attending this event tonight, having spoken and introduced Professor Voisin. We are very grateful and hope that the hospitality of our people is demonstrated fully and that the hospitality of our people will indicate that gratefulness. Thank you (applause). -END-