What are the people-oriented traditional moral allusions?

1, sold his body to bury his father. Yong Dong's family is very poor. After his father died, he had no money to bury him, so he sold himself to borrow money to bury his father.

2. Bury your children and serve your mother. Guo Ju, a caring person in Jin Dynasty, was originally from a wealthy family. After his father died, he divided the property into two parts and divided it between his two younger brothers. He takes care of his mother alone and is extremely filial to her. Later, the family became poorer and his wife gave birth to a boy. Guo Ju's mother loves her grandson very much. She is always reluctant to eat, but she left her only food to her grandson.