在危机时期，真正的领导力是通过行动而不是言语来衡量的。

The internet is a tool that can be used for good or bad, and it's up to us to decide how we use it.

“唯一真正无边无际的是人类精神。”

The Langlands program is a challenge to the boundaries of mathematical knowledge.

译文：世间总有得不到的东西，也总有办不到的事。