We have seen how types of organization, of law, and of consciousness come together into more comprehensive wholes, the forms of social life. These forms of social life, exemplified in my essay by tribal, liberal, and aristocratic society and then again by the varieties of modernity, are the most general types available to social theory. Each of them represents a unique interpretation of what it means to be human. Each confronts its individual members with the recurring demands of human existence, but each presents these in a special way and limits the resources of matter and thought thst can be used to meet them. Perhaps the most pervasive of these continuing problems have to do with the antagonism between the requirements of human individuality and of human sociability, and with the attempt either to subordinate one to the other or to reconcile the two.

The view I have just sketched of the relationships between the most general types—the forms of social life—and human nature is based upon two key ideas that might appear contradictory. The first notion holds that there exists a limited fund of problems and possibilities of human association. Each form of social life is defined by the way it responds to the problems and pursues the possibilities. The fact that the fund is limited makes comprehensive theory and universal comparison possible. This principle, however, seems incompatible with the other half of my thesisː that the forms of social life are constituents and re-creators, rather than just examples, of human nature. ¶ The way to reconcile these two equally important ideas is to conceive of human nature as an entity embodied in particular forms of social life, though never exhausted by them. Consequently, humanity can always transcend any one of the kinds of society that develop it in a certain direction. Nonetheless, human nature is known, indeed it exists, only through the historical types of social life.

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.

The research needed for social practice can best be characterized as research for social management or social engineering. It is a type of action research, a comparative research of the conditions and effects of various forms of social action, and research leading to social action. Research that produces nothing but books will not suffice.

...class happens when some men, as a result of common experiences (inherited or shared), feel and articulate the identity of their interests as between themselves, and as against other men whose interests are different from (and usually opposed to) theirs. The class experience is largely determined by the productive relations into which men are born—or enter involuntarily. Class-consciousness is the way in which these experiences are handled in cultural terms: embodied in traditions, value-systems, ideas, and institutional forms. If the experience appears as determined, class-consciousness does not. We can see a logic in the responses of similar occupational groups undergoing similar experiences, but we cannot predicate any law. Consciousness of class arises in the same way in different times and places, but never in just the same way.

Development in human society is a many-sided process. At the level of the individual, it implies increased skill and capacity, greater freedom, creativity, self-discipline, responsibility, and material well-being. Some of these are virtually moral categories and are difficult to evaluate—depending as they do on the age in which one lives, one’s class origins, and one’s personal code of what is wrong. However, what is indisputable is that the achievement of any of those aspects of personal development is very much tied in with the state of the society as a whole. From earliest times, man found it convenient and necessary to come together in groups to hunt and for the sake of survival. The relations which develop within any given social group are crucial to an understanding of the society as a whole. Freedom, responsibility, skill, have real meaning only in terms of the relations of men in society.

At all times men have lived in societies, and ties of kinship and of simple neighbourhood underlie every form of social organization.

Between man and his social environment there is a reciprocal action. Men make society what it is and society makes men what they are, and the result is therefore a kind of vicious circle.

The fact is, therefore, that definite individuals who are productively active in a definite way enter into these definite social and political relations. Empirical observation must in each separate instance bring out empirically, and without any mystification and speculation, the connection of the social and political structure with production. The social structure and the state are continually evolving out of the life-process of definite individuals, but of individuals, not as they appear in their own or other people's imagination, but as they really are; i.e. as they are effective, produce materially, and are active under definite material limits, presuppositions and conditions independent of their will.
The production of ideas, of conceptions, of consciousness, is at first directly interwoven with the material activity and the material intercourse of men, the language of real life. Conceiving, thinking, the mental intercourse of men, appear at this stage as the direct efflux of their material behaviour. The same applies to mental production as expressed in the language of the politics, laws, morality, religion, metaphysics of a people. Men are the producers of their conception, ideas, etc. — real, active men, as they are conditioned by a definite development of their productive forces and of the intercourse corresponding to these, up to its furthest forms. Consciousness can never be anything else than conscious existence, and the existence of men is their actual life-process. If in all ideology men and their circumstances appear upside down as in a camera obscura, this phenomenon arises just as much from their historical life-process as the inversion of objects on the retina does from their physical life-process.

"The city" is not a framework but a social practice in constant flux the more it becomes an issue, the more it is a source of contradictions and the more its social manipulation is linked to the ensemble of social and political conflicts.

In a capitalist society, all human relationships are voluntary. Men are free to cooperate or not, to deal with one another or not, as their own individual judgments, convictions and interests dictate.

In the social production of their existence, men inevitably enter into definite relations, which are independent of their will, namely relations of production appropriate to a given stage in the development of their material forces of production. The totality of these relations of production constitutes the economic structure of society, the real foundation, on which arises a legal and political superstructure and to which correspond definite forms of social consciousness. The mode of production of material life conditions the general process of social, political and intellectual life. It is not the consciousness of men that determines their existence, but their social existence that determines their consciousness. At a certain stage of development, the material productive forces of society come into conflict with the existing relations of production or – this merely expresses the same thing in legal terms – with the property relations within the framework of which they have operated hitherto. From forms of development of the productive forces these relations turn into their fetters. Then begins an era of social revolution. The changes in the economic foundation lead sooner or later to the transformation of the whole immense superstructure.

There is no aspect of a people's collective life that may not have to be abandoned for the sake of meeting a practical challenge, just as there is no aspect they may not have to jettison in order to deal with the visionary appeal in politics. Consequently, the different forms of social life that exist in the world are always less real than they seem; the differences among them subsist on a containment of conflict. If the nations of the world were exposed to constant practical and visionary conflict, none of the differences among them would have any permanence. This does not mean that the peoples would become alike; it does mean that the marks that distinguish their identities would constantly shift hands and that other marks, never before dreamt of, would suddenly appear.

The hospitality of primitive peoples, respect for human life, the sense of reciprocal obligation, compassion for the weak, courage, extending even to the sacrifice of self for others which is first learnt for the sake of children and friends, and later for that of members of the same community — all these qualities are developed in man anterior to all law, independently of all religion, as in the case of the social animals. Such feelings and practices are the inevitable results of social life. Without being, as say priests and metaphysicans, inherent in man, such qualities are the consequence of life in common. But side by side with these customs, necessary to the life of societies and the preservation of the race, other desires, other passions, and therefore other habits and customs, are evolved in human association. The desire to dominate others and impose one's own will upon them; the desire to seize upon the products of the labor of a neighboring tribe; the desire to surround oneself with comforts without producing anything, while slaves provide their master with the means of procuring every sort of pleasure and luxury — these selfish, personal desires give rise to another current of habits and customs.