"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."

"We shouldn't think about what people feel, but about what they do."

"Human behavior is determined by its consequences."

"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 way in which we think about the causes of human behavior has changed in a way that suggests that we are at an early stage of a scientific revolution."