Drawing is rather like playing chess: your mind races ahead of the moves that you eventually make.

The Langlands program is a testament to the interconnectedness of all areas of mathematics.

You have to accept that sometimes you are the pigeon, and sometimes you are the statue.

国家一定要有直言进谏的臣子，上级必须有敢于提出反对意见的下级，议论国政的人不停止，各种不同政见的人相互辩论，才可以长久保存国家，使国家兴盛强大。也就是说言论自由是民众的基本权利，每个人都可以提出不同的政见，民众有平等参与政治的权利。

最可持续的森林是依赖它的社区所重视的森林。