The mind is its own place, and in itself can make a heaven of hell, a hell of heaven.

数学的本质不是使简单的事情复杂化，而是使复杂的事情简单化。

与没见过的老虎还可以亲近，但与很熟悉的人不能够太亲。

The Government of the United States is a definite Government, confined to specified objects. It is not like the state governments, whose powers are more general.

明明可以享受快乐却不去把握，为什么要自寻烦恼呢？

我们讲述的关于自己的故事和我们过的生活同样重要。

Acquiring things will rarely bring you deep satisfaction. But acquiring experiences will.