在计算复杂性的研究中，我们常常发现可能的边界是由我们想象力的极限定义的。
"In the study of computational complexity, we often find that the boundaries of what is possible are defined by the limits of our imagination."
I'm not going to apologize for being who I am.
最激进的艺术往往是那些提出最简单问题的艺术。
闭上眼睛去看。
The most dangerous risk of all is not taking one.
The notion of truth is not definable in any formal system that is strong enough to include arithmetic.