“The tender sentiment of the 'one and only' has less to do with constancy of heart than with singleness of opportunity.”

“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.”

“But restraint is the only one sort of control, and absence of restraint isn't freedom. It's not control that's lacking when one feels 'free', but the objectionable control of force.”

“The severest trial of oppression is the constant outrage which one suffers at the thought of the oppressor. What Jesus discovered was how to avoid the inner devastations. His technique was to practice the opposite emotion... [a man] may not get his freedom or possessions back, but he's less miserable. It's a difficult lesson.”

“Why did colleges make their students take examinations, and why did they give grade? What did a grade really mean? When a student "studied" did he do anything more than read and think-- or was there something special which no one in Walden Two would know about? Why did the professors lecture to the students? Were the students never expected to do anything except answer questions? Was it true that students were made to read books they were not interested in?”

“The only geniuses produced by the chaos of society are those who do something about it. Chaos breeds geniuses. It offers a man something to be a genius about.”

“A failure is not always a mistake, it may simply be the best one can do under the circumstances. The real mistake is to stop trying. ”