The true method of knowledge is experiment.
知识的真正方法是实验。
It is best to act with confidence, no matter how little right you have to it.
If quantum mechanics hasn't profoundly shocked you, you haven't understood it yet.
我相信爱是比责任感更好的老师，至少对我来说是这样。
仁爱的人将天地万物视为一个整体，没有什么是与自己无关的。
Development economics is ultimately about improving people's lives.
Write a program as carefully as you write a letter.
"You can't go back and change the beginning, but you can start where you are and change the ending."
你无法回到过去改变开头，但你可以从现在开始改变结局。