Behavior is determined by its consequences.

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.

A person's genetic endowment, a product of the evolution of the species, is said to explain part of the workings of his mind and his personal history the rest.

Let men be happy, informed, skillful, well behaved, and productive.

Overcrowding can be corrected only by inducing people not to crowd, and the environment will continue to deteriorate until polluting practices are abandoned.

The way positive reinforcement is carried out is more important than the amount.

Somehow people get the idea I think we should be given gumdrops whenever we do anything of value.