我不必那么害怕告别，因为告别不一定是永远的。

研究历史是政治智慧的开始。

每一本书都是一次旅程，每一次旅程都会改变你。

I’m positive that in 100 years much of what I take to be true today will be proved to be wrong， maybe even embarrassingly wrong， and I try really hard to identify what it is that I am wrong about today.

【译文】凡是事物都有本和末，本末是一体的，不可以把本末分开为两段。

The only way to deal with the world is to write about it.