What is a student's responsibility? (To study!) You have to study hard. Then, what is the purpose of studying? (To become a great person.) Then what is the standard by which we judge greatness? The first stage is your family, the second is your nation, the third is the world, and the fourth is God. There are always three stages. Do you understand? It is necessary to follow this path.

The responsibility of sons and daughters is to show filial piety to their parents centering on the family. Why do you need filial piety? The way of filial piety to your parents is related to the way of loyalty to your nation. They are linked together like bamboo. Further, two be a loyal subject, one has to follow the path of a saint for the sake of the world.

Then, what should we do? We must move forward in a straight line. In this sense, if you were not devoted to your parents, but were loyal to your country, your parents could not blame you for your lack of filial piety. They would say you did very well. When you became a loyal subject of the king, even though you abandoned your parents and left home, and even if they have already gone to the spirit world in your absence, they will praise you from there. (100-155)