译文：高贵的人虽然自以为尊贵，但在我看来却如尘埃;低贱的人虽然自以为卑微，但在我看来却重如千钧。
多项式时间归约的概念对于理解NP完全问题的结构至关重要。
The dead are never far from us. They’re in our hearts and on our minds and in the end all that separates us from them is a single breath, one final puff of air.
The essence of mathematics lies in its freedom.
我们关注的不是数字，而是产生数字的那些东西。