计算复杂性的概念不仅仅是我们能计算多快，还包括理解什么是可以计算的极限。
The concept of computational complexity is not just about how fast we can compute, but also about understanding the limits of what can be computed.
权力在黑暗中保持强大；一旦暴露在阳光下，它就开始蒸发。
没有上帝，而我们是他的先知。