The past is never dead. It's not even past.

Trust doesn’t mean that you trust that someone won’t screw up—it means you trust them even when they do screw up.

The present is always changing, but the past is fixed.

你连自己都管不好，怎么能治理国家的正事呢？ 

——〈在北京基督教等六教会欢迎会的演说〉，1912年9月5日

研究的真正乐趣来自于突破我们认为可能的界限。

未来是我们用每一个选择书写的故事。