2. Reflection is a mirror that can clearly show our mistakes and give us the opportunity to correct them. Heine

3. The most difficult thing in life is to know yourself. Telles

4. Introspection is the way to virtue and God. Watts

5. It’s never too late to correct your mistakes. Shakespeare

6. A race full of dissatisfied people is always moving forward and always has hope. There are many races of people who only know how to blame others but don’t know how to reflect. Woe to you, woe to you! Lu Xun

7. Self-knowledge is the most rare knowledge.

8. Everyone makes mistakes, but only fools will not correct their mistakes. Cicero

9. Self-respect, self-awareness, and self-control, these three can lead to the lofty realm of life. Tennyson

10. If you can’t command yourself, you can’t command others.

11. Even the most spiritual person cannot see his own back.

12. If you want to understand yourself, it is best to ask others.

13. You know your own appetite.

14. People who are afraid of you in front of you will definitely hate you behind your back.

15. Those who sing praises to themselves have only one audience.

16. If you don’t evaluate yourself, you won’t evaluate others.

17. The more incompetent a person is, the more he likes to find fault with others.

18. Everyone knows where shoes squeeze the feet.

19. Don’t laugh at others’ hunched backs, straighten your own back.

20. Only among people can you know yourself.