The human species took a crucial step forward when its vocal musculature came under operant control in the production of speech sounds. Indeed, it is possible that all the distinctive achievements of the species can be traced to that one genetic change.

The speaker does not feel the grammatical rules he is said to apply in composing sentences, and men spoke grammatically for thousands of years before anyone knew there were rules.

Men build society and society builds men.

Behavior is determined by its consequences.

The major difference between rats and people is that rats learn from experience.

Chaos breeds geniuses. It offers a man something to be a genius about.

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