Each person bears a fear which is special to him. One man fears a close space and another man fears drowning; each laughs at the other and calls him stupid. Thus fear is only a preference, to be counted the same as the preference for one woman or another, or mutton for pig, or cabbage for onion.

Considering that we live in an era of evolutionary everything---evolutionary biology, evolutionary medicine, evolutionary ecology, evolutionary psychology, evolutionary economics, evolutionary computing---it was surprising how rarely people thought in evolutionary terms. It was a human blind spot. We look at the world around us as a snapshot when it was really a movie, constantly changing.

All your life people will tell you things. And most of the time, probably ninety-five percent of the time, what they'll tell you will be wrong.

Books aren't written - they're rewritten. Including your own. It is one of the hardest things to accept, especially after the seventh rewrite hasn't quite done it.

Nobody dares to solve the problems-because the solution might contradict your philosophy, and for most people clinging to beliefs is more important than succeeding in the world.

The minute we look, we cease being afraid.

All your life, other people will try to take your accomplishments away from you. Don't you take it away from yourself.