“I find it,” he writes, “impossible to believe that the sense of shame, which is entirely wanting among these naked Indians, can in other men be a primary sense. I am compelled to believe that this sense first made its appearance after certain parts of the body had been covered by clothing, and that the nakedness of women was first concealed from the gaze of others when, perhaps, in very slightly complicated economic and social conditions, the value of marriageable girls had increased, in consequence of more active intercourse, as is now the case among the principal families in Schingu. I am also of opinion that we make the explanation more difficult than it really is when we theoretically believe ourselves to possess a greater sense of shame than we practically have.”[74] Thus we find that among the Bakäiri, who go =completely naked=, our (sexual) sense of shame is almost completely undeveloped; more especially, a sense of shame due to disclosure of parts does not exist, whilst the purely animal, physiological sense of shame is clearly manifested by these people.[75] Where nudity is customary, the erotic sense of shame is very slightly developed. Civilized man also accustoms himself with incredible quickness to nudity, as if it were an entirely natural condition. “The feeling of being in the presence of nudity is no longer noticed after a quarter of an hour, and when those who witness it are intentionally reminded of it, and are asked whether naked men and women, fathers, mothers, and children, who are standing about or walking unconcernedly, should be condemned or regarded with compassion on account of their shamelessness, the observer only feels inclined to laugh, as at something quite absurd, or to protest at a preposterous suggestion.... With what rapidity in unfamiliar regions it is possible to become accustomed to a purely nude environment is most clearly shown by the fact that I myself, in the night from the 15th to the 16th September, and again on the following night, dreamed of my German home, and there in my dream I saw all my acquaintances as completely nude as the Bakäiri with whom I was sojourning. I myself felt astonished at this, but my neighbour at table at a dinner-party at which in my dream I was a guest, a lady of quality, at once bade me compose myself, and said, ‘Now we all go like this.’”[76]