If you don't learn manners, you can't stand it -Confucius

The reason why mortals are more expensive than animals is courtesy. -"The Spring and Autumn Annals of Yan Zi"

The most appetizing thing at a banquet is the host's behavior. -Shakespeare

Rudeness is the illegitimate child of ignorance. Butler

Interest is a strategy that smart people come up with to keep their distance from fools. Emerson

Man cannot live like an animal, but should pursue knowledge and virtue. -Dante

Don't do it with little evil, and don't do it with little good. Only virtue and virtue can serve others. -Liu Bei

Don't disrespect the position, but don't disrespect the virtue; Not ashamed of Lu's disagreement, but ashamed of his lack of wisdom. -Zhang Heng

Soil can hold up the city wall, and virtue is thick soil. -Li Bai

Do a good deed and feel calm inside; If you do a bad thing, you will feel ashamed. -Han Guangshen

Immersed in the mud and not eroded by the sugar-coated shells of the bourgeoisie is the most valuable revolutionary quality. Zhou Enlai

The saddest thing for a person is the death of conscience. —— Guo Moruo

We should be enthusiastic about doing things according to morality, not talking about morality. -democritus

Reason is higher than mind, and thought is more reliable than feeling. Gorky

People should be open-minded in wisdom, innocent in morality and clean in body. -Chekhov

Conscience is determined by people's knowledge and all lifestyles. Marx