修炼的四个阶段：将精转化为气，气转化为神，神回归虚无，最终与道合一。

每个蛋糕都讲述一个故事，每个故事都值得被庆祝。

The only way to do great work is to love what you do.

真相并不总是美丽的，但寻找真相的过程是。

I love inside jokes. I'd love to be a part of one someday.

Mathematics is not a deductive science—that's a cliché. When you try to prove a theorem, you don't just list the hypotheses and then start to reason. What you do is trial and error, experimentation, guesswork.