People can believe pretty much whatever they want to believe about moral and political issues, as long as some other people near them believe it, so you have to focus on indirect methods to change what people want to believe.

Once you understand the power of stimulus control, you can use it to your advantage by changing the stimuli in your environment and avoiding undesirable ones; or, if that's not possible, by filling your consciousness with thoughts about their less tempting aspects.

Sports is to war as pornography is to sex. We get to exercise some ancient, ancient drives.

If you get something for nothing, part of you may be pleased, but part of you moves your hand to give something back.

If you have a personality predisposed to liberalism, you might gravitate more to the artsy crowd or the anti-establishment crowd. And then those peers will affect you, and they will give you values, and you will copy them.

The psychological origins of love are in attachment to parents and sexual partners. We do not attach to ourselves; we do not seek security and fulfillment in ourselves.

The world doesn't usually affect us directly. It's what we do with it. It's the filters that we put on it. That's the foundation of certainly most pop-psychology, and of a lot of psychotherapy, cognitive therapy. So that, I think, is the greatest truth.