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：它是关于理解的。
我不让意见定义我，我让它们磨砺我。
"The world is a shadow, and the shadow is a mirror."
You can't just sit there and wait for people to give you that golden dream. You've got to get out there and make it happen for yourself.
In the darkness, two things are common to all men: fear and the desire for light.