Perhaps it's my natural pessimism, but it seems that an awfully large part of travel these days is to see things while you still can.

Have you ever seen Glenn Beck in operation? It is the most terrifying thing. It's so bad that you think he's going to announce in a minute that it's all a great con. He makes Sarah Palin look reasonable and steady.

Every twenty minutes on the Appalachian Trail, Katz and I walked farther than the average American walks in a week. For 93 percent of all trips outside the home, for whatever distance or whatever purpose, Americans now get in a car. On average the total walking of an American these days - that's walking of all types: from car to office, from office to car, around the supermarket and shopping malls - adds up to 1.4 miles a week, barely 350 yards a day.

Isn´t it strange how wealth is always wasted on the rich?

Those who sniff decay in every shift of sense or alteration of usage do the language no service. Too often for such people the notion of good English has less to do with expressing ideas clearly than with making words conform to some arbitrary pattern.

But I got a great deal else from the experience. I learned to pitch a tent and sleep beneath the stars. For a brief, proud period I was slender and fit. I gained a profound respect for the wilderness and nature and the benign dark power of woods. I understand now, in a way I never did before, the colossal scale of the world. I found patience and fortitude that I didn't know I had. I discovered an America that millions of people scarcely know exists. I made a friend. I came home.

To my mind, the only possible pet is a cow. Cows love you. They will listen to your problems and never ask a thing in return. They will be your friends forever. And when you get tired of them, you can kill and eat them. Perfect.