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 concept of polynomial-time reduction is central to understanding the structure of NP-complete problems.
只有那些冒险走得太远的人才能发现一个人能走多远。
The whole conviction of my life now rests upon the belief that loneliness, far from being a rare and curious phenomenon, peculiar to myself and to a few other solitary men, is the central and inevitable fact of human existence.
A building should touch the earth lightly.
Success is not about the awards, it's about touching people's lives.