回答 "我现在应该做什么？"的唯一有效的方式是首先回答 "我想成为谁？"的问题。
You are not the opinion of somebody who doesn't know you or care about you.
Mathematics is not just a collection of abstract concepts, but a language that allows us to understand the universe.
计算复杂性的本质是理解什么可以被有效地计算的极限。
Where returns are concerned, time is your friend. But where costs are concerned, time is your enemy.
在回报方面，时间是你的朋友。但在成本方面，时间是你的敌人。
The past is not dead. It is not even past.
世间许多事情看似结束实则未了，不如顺其自然不再追究。