Life's too short to hang out with people who aren't resourceful.
耳朵是负责听的,听了之后再加以审察,这叫做聪明。
世间之事,有的可以做,有的不可以做,明知不可为而为之,是愚蠢的行为。
In mathematics, the simplest questions often lead to the most profound discoveries.
No man or woman is worth your tears, and the one who is, won‘t make you cry。