生命中最美好的事物不是物品，而是人、地方、回忆和画面，是情感、瞬间、微笑和笑声。

In mathematics, the most profound ideas often arise from the simplest observations.

I try to leave every place a little better than I found it.

我们都身处阴沟，但仍有人仰望星空。

Believe in your ideas, even if no one else does.

最危险的一句话是：“我们一直都是这么做的。”