A program that has not been tested does not work.

In mathematics, as in life, the most profound discoveries often come from asking the simplest questions.

小的信用积累起来，大的信用才能建立

行义不是为了躲避诋毁、获得荣誉，如果离开是符合道义的，背上狂妄的名声又有什么影响呢？ 

世界是一个故事，我们都是其中的角色。