解决问题的最好方法就是找到一种让它变得无关紧要的方法。
在数学的领域里,每一个问题都是发现新事物和深刻见解的机会。
A good abstraction is one that emphasizes the important details and suppresses the unimportant ones.
The most beautiful thing a person can experience is the mysterious.
Every murder leaves two victims: the deceased and the killer.