数学的研究对科学的发展就像空气或水一样。
We've been through a lot together, and that's what makes us stronger.
面对世俗的烦恼要能忍耐,处身纷扰的世事之中要能安闲,心中牵挂的事要能抛开,在功名利禄面前要淡然处之,心怀忿怒之时要能抑制住情绪。