"The experimental analysis of behavior has shown that the traditional concept of 'inner man' is a fiction."

"The only difference between rats and people is that rats learn from experience."

"Man is a machine in the sense that he is a complex system behaving in lawful ways, but the complexity is extraordinary."

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

"The world would be a better place if we gave up the notion of individual responsibility."