Punishment versus Rewards - Aldous Huxley

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.

- Aldous Huxley, Brave New World Revisited