Therefore, a person should first be changed by a teacher's instructions, and guided by principles of ritual. Only then can he observe the rules of courtesy and humility, obey the conventions and rules of society, and achieve order.

Pride and excess bring disaster for man.

Since the nature of people is bad, to become corrected they must be taught by teachers and to be orderly they must acquire ritual and moral principles.

If there is no dull and determined effort, there will be no brilliant achievement.

The nature of man is evil; what is good in him is artificial.

In antiquity the sage kings recognized that men's nature is bad and that their tendencies were not being corrected and their lawlessness controlled.

Sacrifice is a state of mind in which our thoughts turn with longing [toward Heaven, the Ancestors], It is the supreme expression of loyalty, love, and respect.