The most reliable way to predict the future is to invent it.

You’ve got to have models in your head. And you’ve got to array your experience—both vicarious and direct—on this latticework of models. You may have noticed students who just try to remember and pound back what is remembered. Well, they fail in school and in life. You’ve got to hang experience on a latticework of models in your mind.

我今天才没被，我之所以漂泊就是为了向你靠近。

A picture must be grasped at once, as a whole, like a piece of music.

电磁场的方程是从实验事实中推导出来的。

今天对自由民主最严重的威胁不是来自共产主义或法西斯主义等敌对意识形态，而是来自内部——来自民粹主义的兴起和民主规范的侵蚀。

I’m a very positive thinker, and I think that is what helps me the most in difficult moments.