Abstract
Schopenhauer wrote candidly about sex at a time when almost nobody did. He saw consideration of it as the means of reproduction whereby human beings come into existence as inescapable for metaphysics, indeed for serious thinking. He conjectured that homosexual impulses were implanted by nature in adolescent and elderly males because, although they have sexual urges and can procreate, it is undesirable that they should do so, and therefore the urge is diverted. This, he thinks, is why homosexual activity has been widespread in all known societies. The manner in which he writes about it suggests that he had felt homosexual impulses himself but had not given way to them.