生活是为了活着，我们都知道。

每一本书都是一段旅程，而每一段旅程都会让你有所改变。

The aim of education should be to teach us rather how to think, than what to think—rather to improve our minds, so as to enable us to think for ourselves, than to load the memory with thoughts of other men.

数学是上帝用来书写宇宙的语言。