Immature poets imitate; mature poets steal.
The more you look, the more you see.
数学家的直觉和严谨的证明同样重要。
Customer needs are always our primary driving force.
最好的作品是那些拒绝被轻易理解的。
人生应为生而食，不应为食而生。
学习数学的唯一方法就是做数学。
The purpose of morality is to teach you, not to suffer and die, but to enjoy yourself and live.