在计算复杂性中,我们不仅仅是在处理我们能计算的极限,也是在处理我们能证明的极限。
你知道,在中世纪的英国,但你遇见一个非常穷苦的人,你会认为他“不走运”,直接地说,那些不被幸运之神眷顾的人。
To be free is not merely to cast off one's chains, but to live in a way that respects and enhances the freedom of others.
To make oneself an object, to make oneself passive, is a very different thing from being a passive object.
In programming, as in everything else, to be in error is to be reborn.