The process of doing mathematics is as important as the result itself.
Simple can be harder than complex: You have to work hard to get your thinking clean to make it simple.
教师的爱是滴滴甘露,即使枯萎的心灵也能苏醒;教师的爱是融融春风,即使冰冻了的感情也会消融。
艺术是一面照向社会的镜子,但也是一把塑造社会的锤子。
经常要坦白地承认一项过失错误,这将使你的上司意料防备不及,才会给你一个机会去犯更多的错误。