The longer I live, the more I am inclined to the belief that this earth is used by other planets as a lunatic asylum.
The greatest battles are not fought with weapons, but with ideas.
Cinema is not entertainment, it is a form of art that requires deep understanding and appreciation.
一个好的数学家是能看到定理之间类比的人;一个伟大的数学家是能看到类比之间的类比的人。