The severest trial of oppression is the constant outrage which one suffers at the thought of the oppressor. What Jesus discovered was how to avoid the inner devastations. His technique was to practice the opposite emotion... a man may not get his freedom or possessions back, but he's less miserable. It's a difficult lesson.

Behavior is shaped and maintained by its consequences

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

A disappointment is not generally an oversight. It might just be the best one can do the situation being what it is. The genuine error is to quit attempting.

Let men be happy, informed, skillful, well behaved, and productive.

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

The evolution of cultures appears to follow the pattern of the evolution of species. The many different forms of culture which arise correspond to the "mutations" of genetic theory. Some forms prove to be effective under prevailing circumstances and others not, and the perpetuation of the culture is determined accordingly.