The goal of mathematics is not to solve problems, but to understand them.

——〈在广州岭南学堂的演说〉，1912年5月7日

所有行为都是由某种形式的驱力减少所驱动的。

I do gymnastics because I love it, not because I'm trying to be the best in the world.

成功来自于坚持和努力。