A disappointment is not generally an oversight. It might just be the best one can do the situation being what it is. The genuine error is to quit attempting.

We have seen that in certain respects operant reinforcement resembles the natural selection of evolutionary theory. Just as genetic characteristics which arise as mutations are selected or discarded by their consequences, so novel forms of behavior are selected or discarded through reinforcement.

If the world is to save any part of its resources for the future, it must reduce not only consumption but the number of consumers.

Unable to understand how or why the person we see behaves as he does, we attribute his behavior to a person we cannot see, whose behavior we cannot explain either but about whom we are not inclined to ask questions.

Problem-solving typically involves the construction of discriminative stimuli

When we say that a man controls himself, we must specify who is controlling whom.

What is love except another name for the use of positive reinforcement? Or vice versa.