Mathematics is an art, and as an artist, you have to be honest with yourself.
数学是一门艺术，作为艺术家，你必须对自己诚实。
君子不救人，不是没有能力，而是不愿意去做。
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.
我们都在阴沟里，但仍有人仰望星空。