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 details are not the details. They make the design.
I am always glad to think that my education was, for the most part, informal, and had its roots in the soil.
义务是由于对法则的敬重而产生的行为必要性。
The study of computation is not just about machines, but about the very nature of thought and logic.
计算的研究不仅仅是关于机器，而是关于思维和逻辑的本质。
I don't believe in waiting for inspiration. I believe in working.
当你无法回头时，你只能担心如何向前迈出最佳的一步。
优良的马匹不好驾驭，但是可以载重物跑得很远；有才能的人不好驱使，但是可以使国君更加受人尊敬。