B. F. Skinner

The ideal of behaviorism is to eliminate coercion: to apply controls by changing the environment in such a way as to reinforce the kind of behavior that benefits everyone.

The consequences of an act affect the probability of its occurring again.

The environment will continue to deteriorate until pollution practices are abandoned.

The judge said I was a menace to society because I had put crime on a scientific basis.

Well, I actually wrote her a letter a couple of days ago congratulating her. The tone I tried to convey in the letter is, look, you are a part of a great American historical process.

But with each passing year and each new study, the evidence for the genetic contribution to individual and group differences becomes more firmly established than ever.