The discussion on moral cultivation in "Twelve Chapters of the Analects" mainly includes the following, "People do not know but are not ashamed"; Zengzi said, "I will examine myself three times every day: Is it true that I am not loyal to others?" "You don't trust your friends? You don't get used to it." Confucius said, "If you eat sparingly and drink water, you will be happy in it. Being unjust and rich is like floating clouds." Among them, people who don't know and are not stunned, and who reflect on themselves three times a day, are high moral cultivation, and not everyone can achieve it. Being rich and noble without justice is like a floating cloud to me. It is actually the moral bottom line, and we should achieve it.

Confucius’ famous sayings about morality:

1. Do to others what you do not want others to do to you.

2. If you pass it, you will have to change it in a hurry.

3. People who have no long-term worries must have immediate worries.

4. Use literature to make friends, and friends to help people.

5. Making mistakes without correcting them is called making mistakes!

6. A gentleman wants to be slow in words but quick in deeds.

7. Be respectful where you live, be respectful when working, and be loyal to others.

8. If you are generous to yourself but do not blame others, you will be far away from resentment.

9. If you want to establish yourself, you should establish others; if you want to achieve yourself, you should achieve others.

10. When you see a virtuous person, think about them, and when you see a virtuous person, you should introspect yourself.

11. The three armies can seize the commander, but an ordinary man cannot seize the will!

12. A person who behaves in his own way is shameless and can be used in all directions without dishonoring the emperor's order. He can be called a scholar.

13. If one is not committed to virtue and does not have a firm belief in the Tao, how can one live or die?

14. When making friends, keep your word. Use literature to make friends, and friends to support benevolence.

15. A gentleman takes righteousness as a pledge, practices etiquette as a pledge, a grandson as a gift, and trust as a fulfillment. What a gentleman!

16. No haste, no small gain. If you want haste, you will not achieve anything; if you see small profits, you will not achieve great things.

17. A gentleman’s name must be something to be said, and his words must be actionable. A gentleman is nothing more than scrupulous in his words.

18. Being respectful but rude will lead to fatigue, being cautious but rude will lead to arrogance, being brave but rude will lead to chaos, being straight but rude will lead to strangulation.

19. When three people walk together, they must have a teacher. Choose the good ones and follow them, and choose the bad ones and change them.

20. To say something without mentioning it is called impatience; to say something but not say anything is called concealment; to say it without seeing the color is called blindness.