No matter how good you get, you can always get better, and that's the exciting part.
A mathematician's work is never done; there are always new questions to ask and new mysteries to solve.
成功就是带着热情从一个失败走向另一个失败。
The novel is the art of making the private public, the personal universal.
并不是我很聪明,而只是我和问题相处得比较久一点。