That's all teaching is; arranging contingencies which bring changes in behavior.

In the world at large we seldom vote for a principle or a given state of affairs. We vote for a man who pretends to believe in that principle or promises to achieve that state. We don't want a man, we want a condition of peace and plenty-- or, it may be, war and want-- but we must vote for a man.

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.

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

Society already possesses the psychological techniques needed to obtain universal observance of a code - a code which would guarantee the success of a community or state. The difficulty is that these techniques are in the hands of the wrong people-or, rather, there aren't any right people.

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

Death does not trouble me. I have no fear of supernatural punishments, of course, nor could I enjoy an eternal life in which there would be nothing left for me to do, the task of living having been accomplished.