As a matter of fact, man and society present themselves in a double aspect. They are at the same time products of nature and of human artifice. Just as a stone hammer in the hand of a savage may be regarded as an artificial extension of the natural man, so tools, machinery, technical and administrative devices, including the formal organization of government and the informal "political machine," may be regarded as more or less artificial extensions of the natural social group.
So far as this is true, the conflict between Hobbes and Aristotle is not absolute. Society is a product both of nature and of design, of instinct and of reason. If, in its formal aspect, society is therefore an artefact, it is one which connects up with and has its roots in nature and in human nature.
This does not explain social control but simplifies the problem of corporate action. It makes clear, at any rate, that as members of society, men act as they do elsewhere from motives they do not fully comprehend, in order to fulfil aims of which they are but dimly or not at all conscious. Men are activated, in short, not merely by interests, in which they are conscious of the end they seek, but also by instincts and sentiments, the source and meaning of which they do not clearly comprehend. Men work for wages, but they will die to preserve their status in society, or commit murder to resent an insult. When men act thus instinctively, or under the influence of the mores, they are usually quite unconscious of the sources of the impulses that animate them or of the ends which are realized through their acts. Under the influence of the mores men act typically, and so representatively, not as individuals but as members of a group.
The simplest type of social group in which we may observe "social control" is in a herd or a flock. The behavior of a herd of cattle is, to be sure, not so uniform nor so simple a matter as it seems to the casual observer, but it may be very properly taken as an illustration of the sort of follow-the-leader uniformity that is more or less characteristic of all social groups. We call the disposition to live in the herd and to move in masses, gregariousness, and this gregariousness is ordinarily regarded as an instinct and undoubtedly is pretty largely determined in the original nature of gregarious animals.