《后汉书·列传·吴延史卢赵列传》
仁以爱物，义以退身，真是个有道德的人呀！
仁以矜物，义以退身，君子哉！
Being 仁 (benevolent) in order to love others, and conforming to righteousness so as to restrain oneself, that is the moral character of a human being!