理论计算机科学中的挑战不仅仅是解决问题，而是理解为什么它们难以解决。

The beauty of physics lies in its ability to explain the universe with a few simple principles.

We don't read and write poetry because it's cute. We read and write poetry because we are members of the human race. And the human race is filled with passion. Medicine, law, business, engineering: these are noble pursuits and necessary to sustain life. But poetry, beauty, romance, love...these are what we stay alive for.

I'm not afraid to fail. I'm afraid of not trying.

恨罪恶，但爱罪人。