正如几何学最自然的起点是数学点，在观察和自然历史中采用同样的方法也最真实、简单且富有教益。

最好的投资是投资于那些正在建设未来的人。

学习数学的唯一方法就是做数学。

The beauty of mathematics lies in its ability to describe the universe in a language that is both precise and universal.

It is remarkable how much long-term advantage people like us have gotten by trying to be consistently not stupid, instead of trying to be very intelligent.

自由的土地上才能开出最美的花朵。