I don't believe in guilt, I believe in living on impulse as long as you never intentionally hurt another person.

To look up at the heights of heaven and to admire the stars.

In business, as in chemistry, the right combination of elements creates something extraordinary.

求知若饥，虚心若愚。

哭泣吧，温柔的眼睛，不停地哭泣。

Mathematics is the art of turning complexity into clarity.

历史的任务不是评判，而是理解。

The joy of mathematics comes from the moments of clarity when complex things become simple.

我不相信失败，我相信学习。