Teaching is the most glorious profession under the sun.

Law is not a system of rules, but a system of rules and principles.

I think that the role of the mathematician is to discover these patterns and to explain them.

You are given the gift of life in order to discover what your gift in life is. You will complete your mission when you figure out what your mission is. This is not a paradox. This is the way.

谋划事情没有主见，就会被事情困住；做事情没有准备，肯定会失败。

The legacy of the coal industry will be defined by what we do today.

生活不是等待暴风雨过去，而是学会在雨中跳舞。