In the light of what we have recently learned about animal behavior in general, and human behavior in particular, it has become clear that control through the punishment of undesirable behavior is less effective, in the long run, than control through the reinforcement of desirable behavior by rewards, and that government through terror works on the whole less well than government through the non-violent manipulation of the environment and of the thoughts and feelings of individual men, women and children. Punishment temporarily puts a stop to undesirable behavior, but does not permanently reduce the victim's tendency to indulge in it. Moreover, the psycho-physical by-products of punishment may be just as undesirable as the behavior for which an individual has been punished. Psychotherapy is largely concerned with the debilitating or anti-social consequences of past punishments.
