The consequences of an act affect the probability of its occurring again. - B. F. Skinner

The amateur doesn't appreciate the need for experimentation. He wants his experts to know.

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.

We are only just beginning to understand the power of love because we are just beginning to understand the weakness of force and aggression.