I don’t live in the past. I don’t live in the future. I live now.

教育就是当一个人把在学校所学全部忘光之后剩下的东西。

I don't need validation from anyone else.

世界需要能源，而我们的责任是负责任地提供它。

Change will lead to inspiration far more often than inspiration will lead to change.

创新是可持续发展的关键。

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！"