"I did not direct my life. I didn't design it. I never made decisions. Things always came up and made them for me. That's what life is."

"I am sometimes asked, 'Do you think of yourself as you think of the organisms you study?' The answer is yes."

"The human mind is a device for avoiding thought."

"There is no such thing as a free will."

"Freedom is a matter of contingencies of reinforcement, not of some inner state of mind."