Now the various sentiments which bring one man into mental union with others act with greatest facility when men are connected with one another by some definite mutual bond such as that which forms the family, the clan, or the nation. The individual's feeling of sympathy with his neighbours both promotes this social union and depends upon it. But it is characteristic of the theory of evolution to put the external aspect first--the social customs and institutions--and to evolve from them the corresponding sentiments and ideas. Not word or thought or power, it holds, is to be regarded as the origin of morality: "Im Anfang war die That." The whole composed of these units bound together by reciprocity of feeling and function is termed the "social organism"; and what has been called moral sociology shows the way in which the outward forms which express and embody morality have grown up and become part of it. In this connection, the theory of natural evolution traces the process by which, from the rudimentary beginnings of society, the members composing it have gradually become more coherent amongst one another, related in definite ways instead of merely by chance, and more differentiated in function. Certain rudimentary forms--such as the family (in its rudest structure)--and the corresponding instincts are presupposed. And from this basis the origin of institutions and customs, political, religious, and industrial, is traced. In developing these various customs and institutions, along with the corresponding sentiments, the course of social evolution has had the effect of gradually bringing out and cultivating those feelings and tendencies in the individual which promote the welfare of the organism, while other individual tendencies, hostile to social welfare, have been repressed. Not sympathy and benevolence only, but honesty, temperance, justice, and all the ordinary social and personal virtues, may have their natural history traced in this way--by showing how they have contributed to the life of the individual, or of the society, or of both.[114] Through the operation of purely natural laws, the wicked are "cut off from the earth," while the "perfect remain in it" and leave their possessions to their children. This is an obvious result of natural selection. For those communities are always fittest to survive in which each member, in feeling and in act, is most at one with the whole. The _tendency_ of evolution seems to be to produce not merely an ideal but an actual identification of individual and social interests, in which each man finds his own good in that of the state. FOOTNOTES: