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。
As in geometry the most natural way of beginning is from a mathematical point, so is the same method in observations and natural history the most genuine, simple, and instructive.
Happiness is not the belief that we don't need to change; it is the realization that we can.
一个力学问题只有被简化为代数问题时才算解决。
I believe in the power of storytelling to change hearts and minds.
数学家最好的作品是艺术，一种高度完美的艺术，像想象的最秘密的梦想一样大胆，清晰而透明。
In the realm of algorithms, efficiency and elegance are not mutually exclusive but are often two sides of the same coin.
In the stone business, details make perfection, and perfection is not a detail.