在数学中，最简单的解释往往是最深刻的。
In mathematics, the simplest explanation is often the most profound.
A story is not like a road to follow...it's more like a house. You go inside and stay there for a while, wandering back and forth and settling where you like and discovering how the room and corridors relate to each other, how the world outside is altered by being viewed from these windows.
每一种语言都是思想的古老森林。
教育的主要目标是培养能够创新的人，而不仅仅是重复前人所做的事情。