“Perhaps the profoundest cause of disagreement with the Narodniks is the difference in our fundamental views on social and economic processes. When studying the latter, the Narodnik usually draws conclusions that point to some moral; he does not regard the diverse groups of persons taking part in production as creators of various forms of life; he does not set out to present the sum-total of social and economic relationships as the result of the mutual relations between these groups, which have different interests and different historical roles.”

Source: 1940s, Quasi-Stationary Social Equilibria and the Problem of Permanent Change, 1947, p. 39.

Preface to ' (1859).
Source: A Contribution to the Critique of Political Economy
Context: In the social production of their life, men enter into definite relations that are indispensable and independent of their will; these relations of production correspond to a definite stage of development of their material forces of production. The sum total of these relations of production constitutes the economic structure of society — the real foundation, on which rises a legal and political superstructure and to which correspond definite forms of social consciousness. The mode of production of material life determines the social, political and intellectual life process in general. It is not the consciousness of men that determines their being, but, on the contrary, their social being that determines their consciousness. [Es ist nicht das Bewußtsein der Menschen, das ihr Sein, sondern umgekehrt ihr gesellschaftliches Sein, das ihr Bewusstsein bestimmt. ] At a certain stage of their development, the material productive forces in society come in conflict with the existing relations of production, or — what is but a legal expression for the same thing — with the property relations within which they have been at work before. From forms of development of the productive forces these relations turn into fetters. Then begins an epoch of social revolution. With the change of the economic foundation the entire immense superstructure is more or less rapidly transformed. In considering such transformations a distinction should always be made between the material transformation of the economic conditions of production, which can be determined with the precision of natural science, and the legal, political, religious, aesthetic or philosophic — in short, ideological forms in which men become conscious of this conflict and fight it out. Just as our opinion of an individual is not based on what he thinks of himself, so we can not judge of such a period of transformation by its own consciousness; on the contrary, this consciousness must be explained rather from the contradictions of material life, from the existing conflict between the social productive forces and the relations of production. No social order ever disappears before all the productive forces for which there is room in it have been developed; and new, higher relations of production never appear before the material conditions of their existence have matured in the womb of the old society itself. Therefore, mankind always sets itself only such tasks as it can solve; since, looking at the matter more closely, we will always find that the task itself arises only when the material conditions necessary for its solution already exist or are at least in the process of formation. In broad outlines we can designate the Asiatic, the ancient, the feudal, and the modern bourgeois modes of production as so many progressive epochs in the economic formation of society. The bourgeois relations of production are the last antagonistic form of the social process of production — antagonistic not in the sense of individual antagonism, but of one arising from the social conditions of life of the individuals; at the same time the productive forces developing in the womb of bourgeois society create the material conditions for the solution of that antagonism. This social formation constitutes, therefore, the closing chapter of the prehistoric stage of human society.

Source: "Some Social and Psychological Consequences of the Long Wall Method of Coal-Getting", 1951, p. 14

As quoted in "The Gentle Philosopher" (2006) by John Little at Will Durant Foundation
Context: Perhaps the cause of our contemporary pessimism is our tendency to view history as a turbulent stream of conflicts — between individuals in economic life, between groups in politics, between creeds in religion, between states in war. This is the more dramatic side of history; it captures the eye of the historian and the interest of the reader. But if we turn from that Mississippi of strife, hot with hate and dark with blood, to look upon the banks of the stream, we find quieter but more inspiring scenes: women rearing children, men building homes, peasants drawing food from the soil, artisans making the conveniences of life, statesmen sometimes organizing peace instead of war, teachers forming savages into citizens, musicians taming our hearts with harmony and rhythm, scientists patiently accumulating knowledge, philosophers groping for truth, saints suggesting the wisdom of love. History has been too often a picture of the bloody stream. The history of civilization is a record of what happened on the banks.

Source: Christianity and the Social Crisis (1907), Ch.2 The Social Aims of Jesus, p. 47
Context: Men are seizing on Jesus as the exponent of their own social convictions. They all claim him.... But in truth Jesus was not a social reformer of the modern type... he approached these facts purely from the moral, and not from the economic or historical point of view.

Source: Social Theory and Social Structure (1949), p. 162 (1957 edition)

Source: The Economics of Welfare (1920), Ch. 1 : Welfare and Economic Welfare, § 1

Pitirim Sorokin (1927) Social Mobility, p. 12