——〈在广州岭南学堂的演说〉，1912年5月7日

A good mathematician is someone who can see analogies between theorems. A great mathematician is someone who can see analogies between analogies.

The writer’s true homeland is language.

The rate at which a person can mature is directly proportional to the embarrassment he can tolerate.

每个人都想要更好的生活，很少人想成为更好的人。