Wholly irrespective of the question whether woman is oppressed as a female proletarian, as sex she is oppressed in the modern world of private property. A number of checks and obstructions, unknown to man, exist for her, and hem her in at every step. Much that is allowed to man is forbidden to her; a number of social rights and privileges, enjoyed by the former, are, if exercised by her, a blot or a crime. She suffers both as a social and a sex entity, and it is hard to say in which of the two respects she suffers more. Of all the natural impulses human beings are instinct with, along with that of eating and drinking, the sexual impulse is the strongest. The impulse to procreate the species is the most powerful expression of the "Will to Live." It is implanted most strongly in every normally developed human being. Upon maturity, its satisfaction is an actual necessity for man's physical and mental health. Luther was perfectly right when he said: "He who would resist the promptings of Nature, and prevent their going as Nature wills and must, _what else does he but endeavor to resist Nature's being Nature, that fire burn, water wet, that man eat, drink or sleep_?" These are words that should be graven in granite over the doors of our churches, in which the "sinful flesh" is so diligently preached against. More strikingly no physician or physiologist can describe the necessity for the satisfaction of the craving for love on the part of a healthy being,--a craving that finds its expression in sexual intercourse. It is a commandment of the human being to itself--a commandment that it must obey if it wishes to develop normally and in health--that it neglect the exercise of no member of its body, deny gratification to no natural impulse. Each member must fill the function, that it is intended for by Nature, on penalty of atrophy and disease. The laws of the physical development of man must be studied and observed, the same as those of mental development. The mental activity of the human being is the expression of the physiologic composition of its organs. The complete health of the former is intimately connected with the health of the latter. A disturbance of the one inevitably has a disturbing effect upon the other. Nor do the so-called animal desires take lower rank than the so-called mental ones. One set and the other are effects of the identical combined organism: the influence of the two upon each other is mutual and continuous. This holds good for man as for woman.