什么都会的人，很少有自己所真正精通的东西，整天沉心思虑的人，往往遇事难以下决断。

"When you're fighting for a championship, every point counts."

The definition of a good mathematical problem is the mathematics it generates rather than the problem itself.

世界是一个美丽的地方，但它有它的荆棘。