This, we believe, covers all the classes which are at this time proper subjects for direct restrictive action with eugenic intent; and we repeat that the problem is not to deal with classes as a whole, but to deal with individuals of the kind described, for the sake of convenience, in the above categories. Artificial class names mean nothing to evolution. It would be a crime to cut off the posterity of a desirable member of society merely because he happened to have been popularly stigmatized by some class name that carried opprobrium with it. Similarly it would be immoral to encourage or permit the reproduction of a manifestly defective member of society of the kinds indicated, even though that individual might in some way have secured the protection of a class name that was generally considered desirable. Bearing this in mind, we believe no one can object to a proposal to prevent the reproduction of those feeble-minded, insane, epileptic, grossly defective or hopelessly delinquent people, whose condition can be proved to be due to heredity and is therefore probably transmissible to their offspring. We can imagine only one objection that might be opposed to all the advantages of such a program--namely, that no proper means can be found for putting it into effect. This objection is occasionally urged, but we believe it to be wholly without weight. We now propose to examine the various possible methods of restrictive eugenics, and to inquire which of them society can most profitably adopt. CHAPTER X METHODS OF RESTRICTION The means of restriction can be divided into coercive and non-coercive. We shall discuss the former first, interpreting the word "coercive" very broadly. From an historical point of view, the first method which presents itself is execution. This has been used since the beginning of the race, very probably, although rarely with a distinct understanding of its eugenic effect; and its value in keeping up the standard of the race should not be underestimated. It is a method the use of which prevents the rectification of mistakes. There are arguments against it on other grounds, which need not be discussed here, since it suffices to say that to put to death defectives or delinquents is wholly out of accord with the spirit of the times, and is not seriously considered by the eugenics movement. The next possible method castration. This has practically nothing to recommend it, except that it is effective--an argument that can also be made for the "lethal chamber." The objections against it are overwhelming. It has hardly been advocated, even by extremists, save for those whose sexual instincts are extremely disordered; but such advocacy is based on ignorance of the results. As a fact, castration frequently does not diminish the sexual impulses. Its use should be limited to cases where desirable for therapeutic reasons as well.