Mencius said: "There are three kinds of unfilial piety, the greatest of which is to have no heirs. 'Shun married without complaining, because he had no heirs. A gentleman thinks that he should sue even more.'" ("Mencius · Li Lou Shang· Chapter 20" "Chapter 6") "Filial piety" includes "having no descendants", and "having no descendants" is the greatest form of unfilial piety. "Shun fulfilled the principle of caring for relatives and left Yu. With Yu, the world was transformed. With Yu, the world was determined by father and son. This is called great filial piety." ("Mencius Li Lou 1, Chapter 20") "Chapter Eight") "Filial piety" means "Shun fulfilled the principle of caring for relatives and Gu Gu Yu, Gu Gu Yu and the world changed, Gu Gu Yu and the world was determined to be father and son." Great filial piety meant that Shun tried his best to serve his parents and finally made his father Gushen happy. When Gushen was happy, everyone in the world was influenced by it. When Gushen was happy, the relationship between father and son in the world was as it should be. That's it. That is, filial piety means obeying the wishes of parents and serving their parents. Mencius said: "There are five so-called unfilial persons in the world: four are lazy and do not care about the support of parents, one is unfilial; two are unfilial in gambling and drinking, and do not care about parents' support; two are unfilial; they are fond of money and wealth, are private about wives, and do not care about parents' support, three It is unfilial to follow the desires of the ears and eyes, and to kill one's parents is the fourth unfilial act; to fight bravely and endanger one's parents is the fifth unfilial act. Is this what Zhang Zi is doing? "("Mencius, Chapter 30") "Filial piety" means not "being lazy with the four branches", not "playing games and enjoying drinking", not "loving goods and wealth, and cheating on your wife", not "following the desires of the ears and eyes to kill your parents", not "being brave and fighting ruthlessly to endanger your parents" ". These are all specific behaviors of "filial piety".

Source: Modern Languages ??(Literary Studies)