We cannot doubt that one of the most primitive and universal of the social characteristics of man is an aptitude for disgust, founded, as it is, on a yet more primitive and animal aptitude for disgust, which has little or no social significance. In nearly all races, even the most savage, we seem to find distinct traces of this aptitude for disgust in the presence of certain actions of others, an emotion naturally reflected in the individual's own actions, and hence a guide to conduct. Notwithstanding our gastric community of disgust with lower animals, it is only in man that this disgust seems to become transformed and developed, to possess a distinctly social character, and to serve as a guide to social conduct.[24] The objects of disgust vary infinitely according to the circumstances and habits of particular races, but the reaction of disgust is fundamental throughout. The best study of the phenomena of disgust known to me is, without doubt, Professor Richet's.[25] Richet concludes that it is the _dangerous_ and the _useless_ which evoke disgust. The digestive and sexual excretions and secretions, being either useless or, in accordance with widespread primitive ideas, highly dangerous, the genito-anal region became a concentrated focus of disgust.[26] It is largely for this reason, no doubt, that savage men exhibit modesty, not only toward women, but toward their own sex, and that so many of the lowest savages take great precautions in obtaining seclusion for the fulfillment of natural functions. The statement, now so often made, that the primary object of clothes is to accentuate, rather than to conceal, has in it--as I shall point out later--a large element of truth, but it is by no means a complete account of the matter. It seems difficult not to admit that, alongside the impulse to accentuate sexual differences, there is also in both men and women a genuine impulse to concealment among the most primitive peoples, and the invincible repugnance often felt by savages to remove the girdle or apron, is scarcely accounted for by the theory that it is solely a sexual lure.