余所治者乃革命之学问也。凡一切学术，有可以助余革命之智识及能力者，余皆用以为研究之原料，而组成余之革命学也。
《与邵元冲的谈话》（1919年5月20日）
我是一个偶尔喝酒的人，那种出去喝杯啤酒然后在新加坡醒来时满脸胡须的人。
学习数学的唯一方法就是做数学。
The challenge is to create harmony between the built environment and the natural world.
Life's too short to be anything but happy.
In the wild, every decision can mean the difference between life and death.
I don't run from my past, I just don't bring it with me.
To be free is not merely to cast off one's chains, but to live in a way that respects and enhances the freedom of others.