The only way to learn mathematics is to do mathematics.

领先的秘诀就是开始行动。

I went to the woods because I wished to live deliberately. I wanted to live deep and suck out all the marrow of life, to put to rout all that was not life.

美是真理的光辉。

有些伤口永远不会愈合，只会转化。

喜剧是对悲剧的终极报复。