This paper expounds the truth that righteousness is more important than life, righteousness is more important than profit and injustice is shameful, and puts forward the central argument of "giving up life for righteousness" He compared two kinds of outlook on life, praised those who value righteousness over life and give up life for righteousness, and reprimanded those who drag out an ignoble existence and forget righteousness at the expense of profit. It is not advisable to warn people that they are greedy for wealth without distinguishing between courtesy and righteousness.