God is light, we are told, and Hell is outer darkness. But look at a desert mountain stripped bare by the sun, and you learn only geography. Watch darkness claim it, and for a moment you may grasp why God had to create Satan—or man to create both.

The best dress for walking is nakedness.

Even in these mercifully emancipated decades, many people still seem quite seriously alarmed at the prospect of sleeping away from officially consecrated campsites, with no more equipment than they can carry on their backs. When pressed, they babble about snakes or bears or even, by God, bandits. But the real barrier, I'm sure, is the unknown.

Under most conditions, the best roof for your bedroom is the sky. This commonsense arrangement saves weight, time, energy, and money.

I do what I do instinctively, and that’s me. If you like me, that’s fine; if you don’t like me then don’t watch me.

Frankly, I fail to see how going for a six-month, thousand-mile walk through deserts and mountains can be judged less real than spending six months working eight hours a day, five days a week, in order to earn enough money to be able to come back to a comfortable home in the evening and sit in front of a TV screen and watch the two-dimensional image of some guy talking about a book he has written on a six-month, thousand-mile walk through deserts and mountains.

Life should be an unfinished business.