——致书蒋介石，1920年10月29日

My greatest happiness is doing what I love.

教师最重要的是一颗理解的心，它值得无限地尊崇。人们在回忆中赞赏才华横溢的教师，但感激曾触动自己的人类情感的教师。对于成长中的孩子、对于孩子的灵魂，功课是必须的，但至关重要的营养是人性的温暖。

In quantum information theory, we've learned that information is not just about what you know, but about what you don't know.

Productivity metrics that ignore environmental impact are accounting tricks, not real progress.

Leadership isn’t about being liked; it’s about getting results.

The only way to deal with death is to transform everything that precedes it into art.