Both kindness and beating begin at home. ——Beaumont and Fletcher

Filial piety is the law of heaven and the law of earth. Meaning: Filial piety is a matter of course. From "The Classic of Filial Piety".

Parental love should be like this: it can inspire children to care about the world around them and everything created by people, and inspire their enthusiasm to serve the people.

——Suhomlinsky