The more you give, the more you get.

The only service a friend can really render is to keep up your courage by holding up to you a mirror in which you can see a noble image of yourself.

【释义】一寸大的小火苗，能够将云梦那片广袤的地区烧毁。一个小小的蚁穴能够使得大地崩坍。【延伸】小的祸患最终能够酿成大的灾祸。小毛病往往可以导致大麻烦，优秀的人就是把简单的事做到百分之百完美，细节决定成败。5

In every problem, there is a hidden pattern waiting to be discovered, and it is our duty as mathematicians to uncover it.