A fourth-grade reader may be a sixth-grade mathematician. The grade is an administrative device which does violence to the nature of the developmental process.

Problem-solving typically involves the construction of discriminative stimuli

It is a mistake to suppose that the whole issue is how to free man. The issue is to improve the way in which he is controlled.

The only geniuses produced by the chaos of society are those who do something about it. Chaos breeds geniuses. It offers a man something to be a genius about.

Something doing every minute' may be a gesture of despair-or the height of a battle against boredom.

Men build society and society builds men.

The way positive reinforcement is carried out is more important than the amount.