The worst thing in the world that can happen to you if you’re an engineer that has given his life to develop something is for someone to just rip it off.

The writer must be a traitor to his class, his country, his religion—to everything except his conscience.

Gratitude is an antidote to negative emotions, a neutralizer of envy, hostility, worry, and irritation.

数学中最深刻的发现往往来自于对最基本假设的质疑。