We find, too, this hermaphroditic quality in some of the great artists and poets. Walt Whitman, our American poet, is a good example. He was powerfully built, robust, healthy and overflowing with vitality, so masculine that it is related that Lincoln said of him, “There goes a man”; yet he was as tender as a woman. He nursed personally thousands of soldiers in the Civil War, and their feeling was that he gave them a kind of mother love. But there have been other great men, not artists or religious leaders, who were similar. Lincoln, for instance, had the brooding tenderness and the deep sympathy which we associate with the mother. However, the implication in Carpenter’s theory is that it isn’t just a matter of mental qualities, but also sexual; that the third sex has some of the sexual feeling and need of both sexes, and that this is an explanation of the cause of homosexuality. The facts, however, are against the Carpenter theory. One finds, in practice, that there are homosexual men aggressively masculine, and with hardly a trace of the feminine about them; and, on the other hand, more or less effeminate men whose sexuality is absolutely normal. Moreover, there is a deeper explanation for the man who couldn’t go out and fight and hunt with the other men, and for the woman who hated the agricultural and house duties of other women. According to Jung, there are two great types, the extraverted and the introverted. These types appear, he believes, as differentiations of the two basic and primary instincts, that of self-preservation and that of race-propagation, or, in other words, the ego-instinct and the sexual. We are, evidently, born into the one type or the other, just as we are born into the one sex or the other. The sexual instinct, unconsciously, of course, leads toward the propagation of the species; the urge of nature is for reproduction so that the race can go on. And hence this instinct leads to marriage, the establishment of the family, and finally that of the tribe and nation. And it leads too to all the activities connected with these things. The men must fight to protect their women and children or to bring them more prosperity and power; they must hunt to bring food. The women must bring up the children, make and preserve the home, engage in activities like cooking, spinning, weaving, agriculture. The sexual instinct leads them to activities, to the general run of common life; and in its higher development to the ideal of the brotherhood of man, democracy, etc. The ego-instinct leads to contrary things. It is the opposite to the sexual instinct. Both instincts are natural and exist in everyone: for if it is natural to mate and to seek the good of others, it is equally natural to defend and develop oneself. However, the opposing types arise, according to Jung, because we are born with one instinct or the other predominant.