All human behavior has a reason. All behavior is solving a problem.

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.

The experience of climbing Kilimanjaro affected me so powerfully that, for a long time afterward, if I caught myself saying, "I'm not a person who likes to do that activity, eat that food, listen to that music," I would automatically go out and do what I imagined I didn't like. Generally I found I was wrong about myself - I liked what I thought I wouldn't like. And even if I didn't like the particular experience, I learned I liked having new experiences.

Morality must keep up with technology because if a person is faced with the choice of being moral and dead or immoral and alive, they'll choose life everytime.

They don't have intelligence. They have what I call 'thintelligence.' They see the immediate situation. They think narrowly and they call it 'being focused.' They don't see the surround. They don't see the consequences.

Most areas of intellectual life have discovered the virtues of speculation, and have embraced them wildly. In academia, speculation is usually dignified as theory.

In my view, our approach to global warming exemplifies everything that is wrong with our approach to the environment. We are basing our decisions on speculation, not evidence. Proponents are pressing their views with more PR than scientific data. Indeed, we have allowed the whole issue to be politicized-red vs blue, Republican vs Democrat. This is in my view absurd. Data aren't political. Data are data. Politics leads you in the direction of a belief. Data, if you follow them, lead you to truth.