The best songs are the ones that come from the soul.

"Words are the shadows of actions."

最可持续的建筑是已经建成的建筑。

The past is never dead. It's not even past.

The use of a program to prove the 4-color theorem will not change mathematics - it merely demonstrates that the theorem, a challenge for a century, is probably not important to mathematics.

每个人都有自己内心的黑暗，是否表现出来取决于个人。