Well, the first rule is that you can’t really know anything if you just remember isolated facts and try and bang ’em back. If the facts don’t hang together on a latticework of theory, you don’t have them in a usable form.

"The best and most beautiful things in the world cannot be seen or even touched - they must be felt with the heart."

边界不是一条线，而是一道伤口。

数学是上帝用来书写宇宙的语言。

Today is cruel, tomorrow is crueler, and the day after tomorrow is beautiful. But most people will die tomorrow night, so don't give up today.

写作是我无声呐喊的方式。