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。
The concept of NP-completeness has provided a powerful tool for understanding the complexity of computational problems.
The artist must be a dreamer of the impossible.
每一本书都是一次旅行。
The permanence of certain urban artifacts gives them the quality of monuments.
You have to have confidence in your ability, and then be tough enough to follow through.
“我们对未来唯一知道的是它会不同。”
I don't want to be perfect. I want to be real.