You are never too old to set another goal or to dream a new dream.

技术应该像电力一样在后台为你工作。

Privacy is a fundamental human right.

When stocks are attractive, you buy them. Sure, they can go lower. I’ve bought stocks at $12 that went to $2, but then they later went to $30.

如果你在小事上无原则，那么大事上一样没有原则。

The most profound truths are often the ones we fear the most.

在数学中，就像在生活中一样，最深刻的发现往往来自于提出最简单的问题。