The more you suffer, the more you enjoy the success.

理性建筑不是理性的建筑，而是合理性的建筑。

——二个叔父孙学成、孙观成早年均因为贫穷必须远赴他乡做工谋生，在孙出生前后因病去世，孙看到清朝绩弱不振，受到外国强敌欺侮，增加自己从事反清革命的动机

当你在一生中做某事做得最好时，你真的不想放弃——对我来说就是网球。

I think it's very important to have a feedback loop, where you're constantly thinking about what you've done and how you could be doing it better.