Every point is important, and you have to fight for every one.
I embrace challenges because they make me stronger.
我不睡觉，我只是让眼睛休息。
The truth is, we are all capable of great evil and great good. It is the choices we make that define us.
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
数学不是关于数字、方程、计算或算法的：它是关于理解的。