The concept of NP-completeness has provided a powerful tool for understanding the complexity of computational problems.
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。
One of the best rules anybody can learn about investing is to do nothing, absolutely nothing, unless there is something to do... I just wait until there is money lying in the corner, and all I have to do is go over there and pick it up.
Keep cool, but care.
The effects of policy changes are often more nuanced than simple economic models suggest.
强调人才招募的重要性