Men ran after and ate horses for four hundred thousand years. The outcome is more than a love of horse flesh; it is a runner's body.

Men are born human. What they must learn is to be an animal. If they learn otherwise it may kill them, and kill life on the planet.

There is a secret person undamaged in every individual.

The natural world is not only a set of constraints but of contexts within which we can more fully realize our dreams.

The desert sky is encircling, majestic, terrible.

The human cardiovascular system evolved as part of the physiology of [prehistoric] hunters, who ran for their lives.

Who would want to live in a world that is just not quite fatal?

Man is a distance runner as a consequence of hundreds of thousands of years of chasing antelopes, horses, elephants, wild cattle, and deer.

When men do not run they are likely to die prematurely from dysfunction of the heart and vascular systems or from disabling chronic disease.

Want to have a short phone call with someone? Call them at 11:55 a.m., right before lunch. They'll talk fast. You may think you are interesting, but you are not more interesting than lunch.

To fall in love is to create a religion that has a fallible god.

Actually, I dont hate cats, Im just kind of afraid of them.

To be an overachiever you have to be an over believer.

I love the little suckers; they're so cute. But I love sleep so much, and I worry about everything.

As economic life relies more and more on the Internet, the potential for small bands of hackers to launch devastating attacks on the world economy is growing.

I was feeling very irritable. It was that difficult time of the month when the credit card statement arrives.

Going on Letterman is like going off the high dive. It's exhilarating, but after a while it wasn't the kind of thrill I enjoyed.

Stuff goes wrong. Expect it, learn from it, fix it. That's how remarkable happens.

To be content with death may be better than to desire it.