If there is any purpose or direction in the evolution of a culture, it has to do with bringing people under the control of more and more of the conse… - B. F. Skinner

One person manages another in the sense that he manages himself. He does not do so by changing feelings or states of mind. The Greek gods were said to change behavior by giving men mental states such as pride, mental confusion, or courage, but no one has been successful in doing so since. One person changes the behavior of another by changing the world in which he lives. In doing so, he no doubt changes what the other person feels or introspectively observes.

There is a much more important reason why we have been so slow in discarding mentalistic explanations: it has been hard to find alternatives. Presumably we must look for them in the external environment, but the role of the environment is by no means clear. The history of the theory of evolution illustrates the problem. Before the nineteenth century, the environment was thought of simply as a passive setting in which many different kinds of organisms were born, reproduced themselves, and died. No one saw that the environment was responsible for the fact that there were many different kinds (and that fact, significantly enough, was attributed to a creative Mind). The trouble was that the environment acts in an inconspicuous way: it does not push or pull, it selects. For thousands of years in the history of human thought the process of natural selection went unseen in spite of its extraordinary importance. When it was eventually discovered, it became, of course, the key to evolutionary theory.

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.