"I could make a pigeon a high achiever by reinforcing it on a proper schedule."

"The science of behavior is not interested in what goes on inside the organism, but in what the organism does."

"A person who has been punished is not thereby simply less inclined to behave in a given way; at best, he learns how to avoid punishment."

"We are the product of our environment."

"Society attacks early, when the individual is helpless."