It is true that married women are often infected by their husbands or lovers, but this is only a result of the previous visits of the latter to houses of ill-fame. Hygiene and morals both suffer serious injury in this way. Any one who is infected, and nevertheless has sexual connection with a person not infected in the same way, commits a basely immoral act, if not a crime. This is done, however, _daily_, when the infection is concealed. Nay, more, the medical men who officially visit and examine prostitutes are well aware that they can at most only temporarily remedy a few of the worst symptoms, and that they are powerless to cure the disease itself. In spite of this such women are set at liberty once more to carry on their disastrous trade! And very few prostitutes ever completely escape venereal infection. These are the fruits of paid “love,” maintained chiefly by the drinking habits of the present day. It is plain that the chief task of sexual ethics must be the cleansing of this Augean stable. There are, however, a host of other social evils of a similar kind, such as the seduction and exploitation of waitresses, women factory workers, and so forth. These abuses belong to the same domain and present the same opportunities of infection. * * * * * The various perversions of the sexual instinct constitute another prolific source of disaster. Most of these are hereditary, and therefore inborn. We will only briefly mention sadism (the combination of acts of cruelty and violence with sexual gratification), masochism (sexual gratification combined with the passive endurance of similar cruelty and violence), inverted sexual feeling (homosexuality), fetishism (sexual attraction for inanimate objects), exhibitionism, sodomy, etc. The unfortunate people who suffer from these perversions are treated unjustly and, for the most part, far too harshly. Perverse instincts which injure no one when carried into practice (fetishism, for example), are ethically indifferent and harmless, in that their possessors, generally speaking, do not multiply. It is, however, immoral for such persons to marry. Any one who suffers from an hereditary perversion of the sex instinct should avoid marriage and all procreation of children.