一个文明的真正衡量标准是它如何对待最弱的成员。

我曾想成为月亮上的人，这样便能独处，却又与众生同在。

种一棵树最好的时间是20年前，第二好的时间是现在。

Mathematics is not a careful march down a well-cleared highway, but a journey into a strange wilderness, where the explorers often get lost.

"The dead are never far from us. They're in our hearts and in our minds and in the end, they're all we've got."

The only way to make sense out of change is to plunge into it, move with it, and join the dance.

监管是必要的，但过度监管可能有害。