If you think you saw a mouse， you did. And， if there is one， there are more.

你穿过的门原来是什么样子，走过去以后也要保持那个样子。

The universe is not only stranger than we imagine, it is stranger than we can imagine.

Literature is the memory of humanity.

The past is a living thing.

In computational learning theory, we seek to understand the fundamental principles that govern learning from data.