Persist in doing what you love, and don't give up easily even when facing difficulties.

发散级数是魔鬼的发明，基于它们的任何证明都是一种耻辱。

数学是诸神与人类交谈的语言。

煤炭技术的创新与其他能源领域的创新同样重要。

I'm a person who likes to be remembered.

The only thing worse than being talked about is not being talked about.

至今一切社会的历史都是阶级斗争的历史，即剥削阶级和被剥削阶级之间、统治阶级和被压迫阶级之间斗争的历史。