乐观是正常的，但一些幸运的人比我们其他人更乐观。

The greatest gift you can give someone is your time and attention.

Technology is nothing. What's important is that you have a faith in people, that they're basically good and smart, and if you give them tools, they'll do wonderful things with them.

大多数人害怕变化，但如果你把它看成是某种你总是可以依赖的东西的话，那它就能成为一种安慰。世上你能依赖的东西并不是很多。

In mathematics, persistence is often more important than brilliance.

世界会打击每一个人，但经历过后，许多人会在受伤的地方变得更坚强。