The goal of mathematics is to understand the structures that underlie the phenomena we observe.
读书人不能不心胸宽广意志刚强,因为肩负重任而且征途遥远。他把实现仁的理想作为自己的使命,担子难道不重吗?他为这种理想而奋斗,直到死去为止,路途难道不远吗?
可怕的是假装二流是一流。假装你不需要爱,当你需要的时候;或者你喜欢你的工作,当你很清楚你能够做得更好时。
The most important property of a program is whether it accomplishes the intention of its user.