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.

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.

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

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

The desert sky is encircling, majestic, terrible.

Careless of waste, wallowing in refuse, exterminating the enemies . . . despising age, denying human natural history, fabricating pseudotraditions, swamped in the repeated personal crises of the aging preadolescent; all are familiar images of American society. They are signs of private nightmares of incoherence and disorder in broken climaxes where technologies in pursuit of mastery create ever-worsening problems - private nightmares expanded to a social level.

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.