未来不是固定的；它是我们可以用知识和行动塑造的东西。

Innovation without purpose is just noise.

I'm not perfect, but I'm trying.

The dead are visible only in the terrible lidless eyes of memory.

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！"

语言是思想的外衣，但有时思想赤裸而行。

如果你打算尝试，那就全力以赴。否则，干脆不要开始。