The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.

Sustainable agriculture is not a slogan but a responsibility—we must preserve green mountains and clear waters for future generations.

道德既束缚又蒙蔽。它将我们束缚在意识形态团队中，彼此争斗，仿佛世界的命运取决于我们一方赢得每一场战斗。它使我们看不到每个团队都是由有重要意见的好人组成的事实。

我是一个喜欢在前面的人。

成功不是终点，失败也不是致命的：继续前进的勇气才是最重要的。

爱永远比恐惧更强大。

We all live in the wreckage of our ancestors' lives.

最危险的一句话是：“我们一直都是这么做的。”

The test of a first-rate intelligence is the ability to hold two opposed ideas in the mind at the same time, and still retain the ability to function.