This sentence is from The Book of Rites, and it is said that it was written by seventy-two disciples of Confucius and his students.

1, self-cultivation: in short, it is to improve yourself and behave in a standardized way.

2, Qijia: it is to manage a family well, become a model of the clan, and set an example for learning.

3. Governing the country: it is to govern a small vassal state, not our modern country. You know, the ancient vassal States were responsible for the Zhou royal family, which is what we usually call "the state."

4. pacify the world: it is to appease the people all over the world and let them live and work in peace and contentment, rather than pacify the world by force.