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

3. Don't act on the small evil, and don't act on the small good. Only virtue and virtue can serve others. -Liu Bei

4. Don't be disrespected by your position, but not by your virtue; Not ashamed of Lu's lack of cooperation, but ashamed of his lack of wisdom. -Zhang Heng

5. Earth can support the city wall, and accumulated virtue is a thick land. —— Li Bai

6. Do a good deed and feel at ease; If you do a bad thing, you will feel ashamed. -Shen Hanguang

7. Being immersed in the mud without being stained and not being eroded by bourgeois sugar-coated shells is the most valuable revolutionary quality. -Zhou Enlai

8. Nothing saddens a person more than the death of his conscience. -Guo Moruo

9. Conscious mind is the mother of progress, and self-abasement is the source of degeneration, so conscious mind is indispensable and self-abasement is indispensable. -Zou Taofen

1. Being ashamed is almost brave. -Kong Qiu