"Righteousness" mentioned by Mencius is one of the important moral categories in Confucianism, and it has specific class content. This spirit of "sacrificing one's life for righteousness" stems from Confucius' thought of "benevolence and righteousness". Confucius advocated "killing yourself to become a human being" (The Analects of Confucius Wei Linggong), saying: "If you don't do what is just, you will have no courage." ("The Analects of Confucius for Politics") "Being unjust and rich and expensive is like a cloud to me." However, in the historical process of China, the moral category of "righteousness" has already surpassed the category of Confucianism and become one of the traditional virtues of the Chinese nation because of the inheritance and development of people with lofty ideals in previous dynasties. Throughout the ages, many Chinese sons and daughters have taken "being brave" and "sacrificing their lives for justice" as their motto, blaming themselves and encouraging themselves, leaving many touching stories for the progress of the nation. Today. These ancient slogans have added brand-new connotations and continue to serve the construction of socialist spiritual civilization. Therefore, it has reference significance.