一个好故事是那种在你读完很久之后仍然留在你心中的故事。
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
数学不是关于数字、方程、计算或算法的：它是关于理解的。
"The mind is its own place, and in itself can make a heaven of hell, a hell of heaven."
The more we try to control the world, the more it slips through our fingers.
每本书都是一个完美想法的残骸。