数学的进步是通过它能解决的问题数量来衡量的。

创作行为并不纯粹。历史证明了这一点。社会学提取了它。作家失去了伊甸园，写作是为了被阅读，并最终意识到他不对任何人负责。

The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.

The best way to learn is to teach.

每个人都想改变世界，但没有人想到改变自己。