The true measure of leadership is not in the profits you make, but in the legacy you leave behind.

The key to progress is persistence and a willingness to challenge conventional wisdom.

Power is not a means; it is an end. One does not establish a dictatorship in order to safeguard a revolution; one makes the revolution in order to establish the dictatorship.

学习数学的唯一方法就是做数学。

The most important thing is to enjoy the journey.

I believe in the power of dreams. Dreams are what drive us forward.

You know — one loves the sunset， when one is so sad.