Stalin: Five main types of relations of production are known to history: primitive communal, slave, feudal, capitalist and socialist. The basis of the relations of production under the primitive communal system is that the means of production are socially owned. This in the main corresponds to the character of the productive forces of that period. Stone tools, and, later, the bow and arrow, precluded the possibility of men individually combating the forces of nature and beasts of prey. In order to gather the fruits of the forest, to catch fish, to build some sort of habitation, men were obliged to work in common if they did not want to die of starvation, or fall victim to beasts of prey or to neighboring societies. Labor in common led to the common ownership of the means of production, as well as of the fruits of production. Here the conception of private ownership of the means of production did not yet exist, except for the personal ownership of certain implements of production which were at the same time means of defense against beasts of prey. Here there was no exploitation, no classes. The basis of the relations of production under the slave system is that the slave-owner owns the means of production, he also owns the worker in production – the slave, whom he can sell, purchase, or kill as though he were an animal. Such relations of production in the main correspond to the state of the productive forces of that period. Instead of stone tools, men now have metal tools at their command; instead of the wretched and primitive husbandry of the hunter, who knew neither pasturage nor tillage, there now appear pasturage tillage, handicrafts, and a division of labor between these branches of production. There appears the possibility of the exchange of products between individuals and between societies, of the accumulation of wealth in the hands of a few, the actual accumulation of the means of production in the hands of a minority, and the possibility of subjugation of the majority by a minority and the conversion of the majority into slaves. Here we no longer find the common and free labor of all members of society in the production process – here there prevails the forced labor of slaves, who are exploited by the non-laboring slave-owners. Here, therefore, there is no common ownership of the means of production or of the fruits of production. It is replaced by private ownership. Here the slaveowner appears as the prime and principal property owner in the full sense of the term. Rich and poor, exploiters and exploited, people with full rights and people with no rights, and a fierce class struggle between them – such is the picture of the slave system. The basis of the relations of production under the feudal system is that the feudal lord owns the means of production and does not fully own the worker in production – the serf, whom the feudal lord can no longer kill, but whom he can buy and sell. Alongside of feudal ownership there exists individual ownership by the peasant and the handicraftsman of his implements of production and his private enterprise based on his personal labor. Such relations of production in the main correspond to the state of the productive forces of that period. Further improvements in the smelting and working of iron; the spread of the iron plow and the loom; the further development of agriculture, horticulture, viniculture and dairying; the appearance of manufactories alongside of the handicraft workshops – such are the characteristic features of the state of the productive forces. The new productive forces demand that the laborer shall display some kind of initiative in production and an inclination for work, an interest in work. The feudal lord therefore discards the slave, as a laborer who has no interest in work and is entirely without initiative, and prefers to deal with the serf, who has his own husbandry, implements of production, and a certain interest in work essential for the cultivation of the land and for the payment in kind of a part of his harvest to the feudal lord. Here private ownership is further developed. Exploitation is nearly as severe as it was under slavery – it is only slightly mitigated. A class struggle between exploiters and exploited is the principal feature of the feudal system. The basis of the relations of production under the capitalist system is that the capitalist owns the means of production, but not the workers in production – the wage laborers, whom the capitalist can neither kill nor sell because they are personally free, but who are deprived of means of production and) in order not to die of hunger, are obliged to sell their labor power to the capitalist and to bear the yoke of exploitation. Alongside of capitalist property in the means of production, we find, at first on a wide scale, private property of the peasants and handicraftsmen in the means of production, these peasants and handicraftsmen no longer being serfs, and their private property being based on personal labor. In place of the handicraft workshops and manufactories there appear huge mills and factories equipped with machinery. In place of the manorial estates tilled by the primitive implements of production of the peasant, there now appear large capitalist farms run on scientific lines and supplied with agricultural machinery The new productive forces require that the workers in production shall be better educated and more intelligent than the downtrodden and ignorant serfs, that they be able to understand machinery and operate it properly. Therefore, the capitalists prefer to deal with wage-workers, who are free from the bonds of serfdom and who are educated enough to be able properly to operate machinery. But having developed productive forces to a tremendous extent, capitalism has become enmeshed in contradictions which it is unable to solve. By producing larger and larger quantities of commodities, and reducing their prices, capitalism intensifies competition, ruins the mass of small and medium private owners, converts them into proletarians and reduces their purchasing power, with the result that it becomes impossible to dispose of the commodities produced. On the other hand, by expanding production and concentrating millions of workers in huge mills and factories, capitalism lends the process of production a social character and thus undermines its own foundation, inasmuch as the social character of the process of production demands the social ownership of the means of production; yet the means of production remain private capitalist property, which is incompatible with the social character of the process of production. These irreconcilable contradictions between the character of the productive forces and the relations of production make themselves felt in periodical crises of over-production, when the capitalists, finding no effective demand for their goods owing to the ruin of the mass of the population which they themselves have brought about, are compelled to burn products, destroy manufactured goods, suspend production, and destroy productive forces at a time when millions of people are forced to suffer unemployment and starvation, not because there are not enough goods, but because there is an overproduction of goods. This means that the capitalist relations of production have ceased to correspond to the state of productive forces of society and have come into irreconcilable contradiction with them. This means that capitalism is pregnant with revolution, whose mission it is to replace the existing capitalist ownership of the means of production by socialist ownership. This means that the main feature of the capitalist system is a most acute class struggle between the exploiters and the exploited. The basis of the relations of production under the socialist system, which so far has been established only in the U.S.S.R., is the social ownership of the means of production. Here there are no longer exploiters and exploited. The goods produced are distributed according to labor performed, on the principle: "He who does not work, neither shall he eat." Here the mutual relations of people in the process of production are marked by comradely cooperation and the socialist mutual assistance of workers who are free from exploitation. Here the relations of production fully correspond to the state of productive forces; for the social character of the process of production is reinforced by the social ownership of the means of production. For this reason socialist production in the U.S.S.R. knows no periodical crises of over-production and their accompanying absurdities. For this reason, the productive forces here develop at an accelerated pace; for the relations of production that correspond to them offer full scope for such development. Such is the picture of the development of men's relations of production in the course of human history. Such is the dependence of the development of the relations of production on the development of the productive forces of society, and primarily, on the development of the instruments of production, the dependence by virtue of which the changes and development of the productive forces sooner or later lead to corresponding changes and development of the relations of production. https://wordsmith.social/protestation/quotes#quote5844