The author argues that sexuality is a natural human phenomenon long clouded by religious puritanism and social taboos, and surveys contemporary thought, drawing on Freud's account of childhood erotic development, fixation and the Oedipus complex, Jung's criticisms, and Edward Carpenter's notion of a third sex to explain varieties of sexual expression and perversion. He outlines mechanisms like sublimation as ways abnormal impulses can be redirected into socially useful activities, describes manifestations such as auto-erotism, exhibitionism, sadism, and homosexuality as often rooted in early development, and calls for a clearer, commonsense understanding of sexual life free from shame.