"The only way to save the world is to change the way we behave."

"The concept of 'mind' is a verbal invention, an explanatory fiction."

"The ideal of a body of knowledge to which all men can contribute and which all men can use has been the great motivating force of science."

"I deny that I have ever attacked anyone's dignity. I have attacked the concept of dignity as a causal agent."

"The environment shapes behavior, but behavior also shapes the environment."