相信自己，一切皆有可能。
NP完全性的概念为理解计算问题的复杂性提供了一个强大的工具。
We don't inherit forests from our ancestors, we borrow them from our children.
A story is not like a road to follow...it's more like a house. You go inside and stay there for a while, wandering back and forth and settling where you like and discovering how the room and corridors relate to each other, how the world outside is altered by being viewed from these windows.
度过痛苦的唯一方法就是经历它。
努力工作，保持善良，永不放弃。成功自会随之而来。
The best way to predict the future is to create it.
Courage doesn't always roar. Sometimes courage is the quiet voice at the end of the day saying, "I will try again tomorrow."