The past is never dead. It's not even past.
追求数学知识是一段永无止境的旅程。
The greatest happiness which can happen to any country is the taking of the supreme power out of the hands of the governing few and putting it into the hands of the governed many.
The universe is not only stranger than we imagine, it is stranger than we can imagine.
True leadership is about making the tough decisions when no one else will.
解释：闭目塞听，不去思考，不登高博览远望的人，和死人是一类的啊！
