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！"

每次人们赞同我的时候，我都觉得自己一定错了。

对付一个不自由的世界的唯一方法就是变得如此绝对自由，以至于你的存在本身就是一种反抗。

The self is only that which it is in the process of becoming.

如果让我用一句话总结如何改变世界，我会说，努力工作，为那些真正激动人心的事物。

"To be happy is to be able to become aware of oneself without fright."

自然的统一性不是假设而是事实。

我们今天的每一个决定都将在未来几十年影响海洋生态系统。