作战虽然讲究排兵布阵，但士兵的勇敢是其中的根本；丧葬虽然讲究礼节，但对亲人的哀思是其中的根本；一个人虽然很有学识，但思想道德、行为举止是其中的根本。
Three things you need: The ability to not give up something till it works， the ability to give up something that does not work， and the trust in other people to help you distinguish between the two.
