如果你想成功，你必须准备好受苦。
The most important thing in communication is hearing what isn't said.
To turn caring into action, we need to see a problem, see a solution, and see the impact. But complexity blocks all three steps.
The greatest discoveries in mathematics are those that unify seemingly unrelated ideas.
——在广州全国青年联合会演说，1923年10月21日