生活若无波折险阻，就会过于平淡无奇。

自由不是做你想做的事，而是想要你该要的东西。

The desire for recognition, the thymotic part of the soul, is the most political part of the human personality because it is what drives people to want to be recognized as superior to others.

NP中的每个问题都可以归约为可满足性问题，这是计算复杂性理论的基石。

我努力工作，我做得很好，我会享受自己。我不会让你限制我。