Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.

The best way to predict the future is to invent it.

You are not only responsible for what you say, but also for what you do not say.

没有人能为你建造那座你必须独自跨越生命之河的桥梁。

你唯一应该努力超越的人，是昨天的自己。