At that age， I'd take any excuse to make estimates and do minor arithmetic. I'd calculate our gas mileage -- figure out useless statistics on things like grocery spending. I'd been hearing an ad campaign about smoking. I can't remember the details， but basically the ad said， every puff of a cigarette takes some number of minutes off of your life: I think it might have been two minutes per puff. At any rate， I decided to do the math for my grandmother. I estimated the number of cigarettes per days， estimated the number of puffs per cigarette and so on. When I was satisfied that I'd come up with a reasonable number， I poked my head into the front of the car， tapped my grandmother on the shoulder， and proudly proclaimed， "At two minutes per puff， you've taken nine years off your life！"

学习是企业的进步，没有学习就没有成长。

"Writing is a bit like shitting. If it's coming out too hard, something's wrong."

在座各位都拥有许多天赋。我确信你们的天赋之一就是拥有精明能干的头脑。之所以如此确信，是因为入学竞争十分激烈，如果你们不能表现出聪明智慧，便没有资格进入这所学校。