The endeavor of eugenics is to restore the former selection of the fit in place of the present disastrous selection of the unfit. This eugenics wishes to be effected not by following the brutal philosophy of a Nietzsche, or by abolishing all charities, or by exposing weak children, as practised by the ancient Spartans. The moral law and human sympathy dictate that the children, once born, should be preserved by all known means. But in the interest of the race, such children should be prevented from being born. This need not be accomplished by abolishing the absolute freedom of selection of marriage-mates, as advocated by some pseudo-sociologists in Europe. There is no need for the overthrowing of all human institutions and for the imitation of the method of the stud-farm, as advocated by the modern race-culturists. The freedom to contract even of an unsuitable marriage is always preferable to the tyranny of the state directing the personal affairs of its citizens.[CJ] The first essential for human development is liberty. Liberty is the atmosphere in which character is formed. No one has a right to exclude two free-born individuals from marriage. This right is inalienable. To exclude such a man and woman from marriage relations would be assaulting the inalienable rights of man which no legislature or even constitution may do, except by brutal force. But man has no right to injure his own children. The careless or wilful procreation of a vicious progeny is not only a crime against humanity but a wrong to the children who ought to have remained unborn. Hence it is the solemn duty of any couple, if there be a taint in their ancestry, voluntarily to exclude themselves from parenthood. If their mentality does not enable them to exercise such control, society has a right, nay the duty to effect the exclusion in its own interest as well as in the interest of the offspring, who would become a burden to themselves. This exclusion cannot be realized by laws against marriage of individuals, physically or morally inferior. Such laws are entirely futile in relation to propagation. Only hypocrites or perfect fools do not see it. The sex-urge plays a particular rôle in degenerates. They suffer from a diseased exaggeration of the sex impulse. No laws, except it be segregation, can prevent the seduction of the feeble-minded woman or the rape by the criminal man, and a new generation of deteriorants would arise, marriage or no marriage. The baneful sentimentality or sordid economy which allows moral weaklings to roam at large on parole or suspended sentence can only lead to the breeding of mental and moral cripples. If the number of the undesirable and unfit should be decreased, not the marriage but the breeding of the defectives should be prevented.