Fourth: Ziyou asked what filial piety was, and Confucius said, "The so-called filial piety nowadays is just adoptive parents. However, even dogs and horses can be kept. If you don't care about honoring your parents, what's the difference between supporting your parents and raising dogs and horses? "
Sixth: Xia Zi asked what filial piety was, and Confucius said, "The hardest thing is to be kind to parents. Only when children do something for their parents can they consider this filial piety? "