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

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 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.

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

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

There is a secret person undamaged in every individual.

All around us, aspects of the modern world - diet, exercise, medicine, art, work, family, philosophy, economics, ecology, psychology - have begun a long circle back toward their former coherence. Whether they can arrive before the natural world is damaged beyond repair and madness destroys humanity, we cannot tell.