这就是人类第一个划时代的变革，人类建立了家庭，形成了某种形式的私有制，也给自己带来了无穷无尽的争吵和冲突。
Global challenges require global solutions.
The only thing that can make you happy is doing what you love.
On pivoting: "If you're not stubborn， you'll give up on experiments too soon. And if you're not flexible， you'll pound your head against the wall and you won't see a different solution to a problem you're trying to solve."
The most elegant mathematical proofs are those that reveal truth with simplicity.