I've often said that my rats have taught me much more than I've taught them.

Do not intervene between a person and the consequences of their own behavior.

Must we wait for selection to solve the problems of overpopulation, exhaustion of resources, pollution of the environment and a nuclear holocaust, or can we take explicit steps to make our future more secure? In the latter case, must we not transcend selection?

It is a surprising fact that those who object most violently to the manipulation of behaviour nevertheless make the most vigorous effort to manipulate minds.

Overcrowding can be corrected only by inducing people not to crowd, and the environment will continue to deteriorate until polluting practices are abandoned.

Men build society and society builds men.

The simplest and most satisfactory view is that thought is simply behavior - verbal or nonverbal, covert or overt. It is not some mysterious process responsible for behavior but the very behavior itself in all the complexity of its controlling relations.