【正文】
7 In the United States we have bee so habituated to using the car for everything that it doesn’t occur to us to unfurl our legs and see what those lower limbs can do. We have reached an age where college students expect to drive between classes, where parents will drive three blocks to pick up their children from a friend’s house, where the letter carrier takes his van up and down every driveway on a street.8 We will go through the most extraordinary contortions to save ourselves from walking. Sometimes it’s almost ludicrous. The other day I was waiting to bring home one of my children from a piano lesson when a car stopped outside a post office, and a man about my age popped out and dashed inside. He was in the post office for about three or four minutes, and then came out, got in the car and drove exactly 16 feet (I had nothing better to do, so I paced it off) to the general store6 next door.9 And the thing is, this man looked really fit. I’m sure he jogs extravagant distances and plays squash and does all kinds of healthful things, but I am just as sure that he drives to each of these undertakings.10 An acquaintance of ours was plaining the other day about the difficulty of finding a place to park outside the local gymnasium. She goes there several times a week to walk on a treadmill. The gymnasium is, at most, a sixminute walk from her front