For the filthy and ignorant savage, absorbed in satisfying his immediate bodily needs, standing in the simplest of social relations, taking literally no thought for the morrow, profoundly ignorant of the world in which he finds himself, possessing over nature no control worthy of the name, the sport and slave of his environment, it is natural to act in one way. For enlightened humanity, acquainted with the past and forecasting the future, developed in intellect and refined in feeling, rich in the possession of arts and sciences, intelligently controlling and directing the forces of nature, socially organized in highly complicated ways, it is natural to act in another way. And to each of the intermediate stages in the evolution of civilization some type of conduct appears to be appropriate and natural. Whither, then, shall we turn for our conception of man's nature? Shall we merely draw up a list of the instincts and impulses which may be observable in all men? Shall we say no more than that man is gifted with an intelligence superior to that of the brutes? To do this is, to be sure, to give some vague indication of man's original endowment. But it can give us little indication of what it is possible for man, with such an endowment, and in such an environment as makes his setting, to become. And what man becomes, that he is. If man's nature can be revealed only through the development of his capacities, it is futile to seek it in a return to undeveloped man. The nature of the chicken is not best revealed in the egg. And, as man can develop only in interaction with his environment, we must, to understand him, study his environment also. CHAPTER IX MAN'S MATERIAL ENVIRONMENT 24. THE STRUGGLE WITH NATURE.--It is not possible to disentangle from each other and to consider quite separately the diverse elements which enter into the environment of man and which influence his development. His environment is two-fold, material and social; but his material setting may affect his social relations, and it is social man, not the individual as such, that achieves a conquest over nature. However, it is possible, and it is convenient, to direct attention successively upon the one and the other aspect of his environment. At every stage of his development, man must have food, shelter, some means of defense. If they are not easily obtainable, he must strain every nerve to attain them. Are his powers feeble and his intelligence undeveloped, it may tax all his efforts to keep himself alive and to continue the race in any fashion. The rules which determine his conduct seem rather the dictates of a stern necessity than the products of anything resembling free choice.