Friends congratulate me after a quarterly-earnings announcement and say, 'Good job, great quarter.' And I'll say, 'Thank you, but that quarter was baked three years ago.'

The beauty of mathematics is not in its complexity, but in its simplicity and the profound truths it reveals about the universe.

I don't compete with anyone but myself.

当遇到反对意见时，即使它可能来自你的丈夫或孩子，也要努力用论证而不是权威去克服它，因为依靠权威的胜利是不可靠而虚妄的。

唯一真正有价值的是你花在做你热爱的事情上的时间。

物理定律是宇宙的语言，通过它们，我们可以开始理解存在的广阔和复杂性。