There are three methods to effect the elimination of the undesirables—segregation, sterilization and castration. In the early history of the human race artificial devices were unnecessary. Natural selection, or the survival of the fittest, was the most potent factor of the elimination of the weak. Later on, in the periods of the Greek and Roman civilizations, the exposure of sickly children, famines, epidemics and the lack of hygiene served as the best means of weeding out the feeble and the weak in mind and body. But as civilization advances a higher ethical level is reached. The diseased, the weak and feeble are allowed to survive. Especially since the appearance of Christianity, which originated among the poor and lowly, charity to the sick, poor, weak and afflicted has become to be considered the first duty of human society. The greatest part of all our charities is in the service of the defectives and the degenerates. The ever-broadening sympathy and altruism of civilized humanity makes it possible for the dependent and delinquent classes to survive. We make the fostering of the unfit and of the cripple our highest duty. Especially in modern times, the great strides made in hygiene and in the other medical sciences operate to prolong the existence of the unfit till the period of propagation. War on infant mortality and surgical aid have enabled defectives to become parents. We are trying to make environment safer for the feebler in mind and body. Manifold facilities are offered for the survival of the unfit. A social contra-selection has thus set in. All our sentimental activities in the interest of charity, praiseworthy as they are, are in the last analysis anti-social.