Some of us learn control, more or less by accident. The rest of us go all our lives not even understanding how it is possible, and blaming our failure on being born the wrong way.

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.

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

Science, not religion, has taught me my most useful values, among them intellectual honesty. It is better to go without answers than to accept those that merely resolve puzzlement.

Problem-solving typically involves the construction of discriminative stimuli

It has always been the task of formal education to set up behavior which would prove useful or enjoyable later in a student's life.

The one fact that I would cry form every housetop is this: the Good Life is waiting for us - here and now.