The greatest discovery of any generation is that a human being can alter his life by altering his attitude.

人生最难学的是该过哪座桥，该烧哪座桥。

Solitude is to the spirit what diet is to the body.

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

保持进步的唯一方法就是保持渴望。