The source of Ceng Zi's murder is selected from Everything is Wrong. Ceng Zi insisted because his wife said to her son, "Come back and kill pigs for you."

Ceng Zi insisted on killing pigs because his wife said to her son, "Come back and kill pigs for you.". He kept his word, reflecting the Confucian moral concept of "keeping his word". ① It embodies the importance of educating children to match words with deeds. Do things in accordance with your words and deeds. In order not to break his promise to the children, Ceng Zi actually killed the pig and cooked it for the children. The purpose is to educate and influence future generations with an honest and credible attitude towards life. But this is not necessarily the original intention of Han Fei's fable. Han Feizi's original intention is only to publicize his legal thought of attaching importance to law and keeping promise, and to ask the rulers to make strict laws, and then there are laws to follow and the laws must be strictly enforced.