"The world is not a place for self-expression, but for self-control."

"The pigeon is a better psychologist than the human being because it doesn't have language to confuse it."

"We are not responsible for our behavior, but we are responsible for the environment that controls it."

"We are all controlled by the world, part of the time in rather crude ways, and part of the time very subtly."

"The consequences of an act affect the probability of its occurring again."