一个人生命中最孤独的时刻是当他们看着自己的整个世界分崩离析，而他们所能做的只是茫然地凝视。

Quality is never an accident; it's the result of intention and effort.

I'm not here to please everyone. I'm here to be true to myself.

尝试一种方法是常识。如果失败了，坦率地承认并尝试另一种方法。但最重要的是，尝试一些事情。

In computational complexity, we are not just dealing with the limits of what we can compute, but also with the limits of what we can prove.