The journey of solving a mathematical problem is as important as the solution itself, for it teaches us patience, persistence, and the joy of discovery.
在桂林学界迎会的演说，1922年1月22日
一切都是美好的，没有任何伤害。
我不去想成为最好的，我只想比昨天更好。
The truth is, the science of Nature has been already too long made only a work of the brain and the fancy: It is now high time that it should return to the plainness and soundness of observations on material and obvious things.