人生最难的是知道该跨过哪座桥，又该烧掉哪座桥。

In mathematics, the art of proposing a question must be held of higher value than solving it.

股市充满了机会，但你必须耐心去寻找它们。

The study of automorphic representations is a key to understanding the Langlands conjectures.

写作是一种勇气的行为。