Leadership is about having the courage to make tough decisions and the humility to learn from mistakes.

未说出口的往往比说出的更有力量。

如果一个聪明人干了一件蠢事，那就不会是一件小小的蠢事。

The only thing that overcomes hard luck is hard work.

The arithmetic of modular forms is a key to understanding the deeper mysteries of number theory.