"A person does not act upon the world, the world acts upon him."

"The future of man is not in the stars but in the control of his own behavior."

"We are all controlled by our environment, and the only difference is whether we control the controller."

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

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