我们不是从祖先那里继承土地，而是向子孙后代借用土地。

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！"

"The best way to lead is to be vulnerable."

重要的不是你对了还是错了，而是当你对了的时候你赚了多少钱，当你错了的时候你亏了多少钱。

Never underestimate the power of a single breakthrough to change millions of lives.