理论上，理论和实践之间没有区别。但实际上，是有区别的。
The most profound ideas in mathematics often arise from the simplest observations.
I don't feel like I have to please anyone. I feel free. I feel like I'm an adult. I'm grown. I can do what I want. I can say what I want. I can retire if I want. That's why I've worked hard.
——在上海中国国民党本部会议演说，1920年11月9日
讽刺是反思的快乐，也是智慧的喜悦。
I don't think you should ever have to apologize for your excitement.
The most important thing is to tell a story that you care about.
If you spend more than 13 minutes analyzing economic and market forecasts, you've wasted 10 minutes.
如果你花超过13分钟分析经济和市场预测，你就浪费了10分钟。