可归约性的概念对于理解不同计算问题之间的关系至关重要。
I don’t need approval, I need results.
How many times must a man look up Before he can see the sky？
Science is not just about discovery, but also about the application of knowledge to improve human life.
每个人都有属于自己的故事。
To men like that, time was a surfeit, a barrel they watched slowly drain. When really, he thinks, it’s a glowing puddle you carry in your hands; you should spend all your energy protecting it.