有人告诉我在我书中每个方程式将会降低一半的销售量。结果，我确实放了一个方程式——爱因斯坦著名的等式，E=mc2。我发现这并没有吓跑我一半的潜在读者。
——《在广州岭南学生欢迎会的演说》（1923年12月21日）
One is the happiest thing is that somebody loves you.When you are at my time， I absent-minded，When I come to you， when you have gone.We are always in a meeting to miss， losing a lot of.However， I want to say this is because we are still young.No， perhaps this is our life.From then on， I always looked back the road.
