1. Being unmasked is a kind of failure, but taking off the mask yourself is a kind of victory. ——Hugo

2. The most difficult thing is to know yourself. ——Greece

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

4. Self-knowledge is the most rare knowledge. ——Spain

5. You know where your shoes are tight. ——Spain

6. You know your own appetite. ——Soviet Union

7. Wash the spring to clean yourself. ——Han Yu

8. Only when you have suffered deeply can you understand the pain of others, so it is difficult to reflect on yourself. —— Xi Juan

9. Only among the crowd can you know yourself. ——Germany

10. Just by being self-reflexive, nothing will happen in the world. ——Shen Juyun

11. In everyone, there are two kinds of requirements at all times, one is yearning for God and the other is yearning for Satan. ——Baudelaire

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

13. If you want to understand yourself, it is best to ask others. ——Japan

14. If you want me to write my own history, I will write about my mistakes. ——Zhou

15. Be careful, even when you are alone, do not say bad words or do bad things, but learn to be more shameful in front of yourself than others. ——Democritus

16. I have to examine myself three times every day. Have I been unfaithful in my plans for others? Have I not trusted my friends? Have I not been accustomed to spreading my knowledge? ——Confucius

17. You can count the stars in the sky clearly, but you can’t see the soot on your face.

——Malaysia