1. Those who know others are wise, those who know themselves are wise, those who conquer others are powerful, and those who conquer themselves are strong.

——Laozi

2. The sage knows himself but does not see himself, loves himself but does not value himself.

——Lao Tzu

3. If you don’t learn to know yourself, if you don’t ask yourself to know yourself, you will behave in ancient and modern ways, which is not the case.

——Wang Chong

4. Those who know themselves do not blame others; those who know their fate do not blame heaven; those who blame others are poor, and those who blame heaven have no ambitions.

——Xunzi

5. Read old books without getting tired of reading them a hundred times. If you read them carefully, you will know yourself.

——Su Shi

6. If you want to conquer others, you must first conquer yourself. If you want to judge others, you must first judge yourself. If you want to understand others, you must first understand yourself.

——Lv Buwei

7. Self-examination can observe people, and observing people also enables self-knowledge. The two wings of a bird and the two blades of a shear are indispensable.

——Qian Zhongshu

8. It is said that everyone needs a mirror so that he can often look at himself and know what he is. However, people who can know themselves do not need to look at themselves in the mirror at all; There is no use looking in the mirror at what you don't know yourself.

——Qian Zhongshu

9. Everyone should be self-aware and should not be sentimental.

——Gu Long

10. Self-esteem, self-knowledge, and self-control, only these three can lead one to the most noble kingdom.

——Tennyson

11. I have tasted the sweet and spicy taste of the world, and I know the warmth and coldness of the words.

——Natsume Soseki

12. Not knowing one’s own ignorance is double ignorance.

——Plato

13. People who do not have such a thing as "sensitivity" will always hurt others deeply without knowing it.

——Dazai Osamu

14. There are very few people in the world who are self-aware, but there are many people who like to be teachers.

——Zhou Guoping

15. Lack of self-knowledge is the most foolish thing.

——Rousseau

16. A fool thinks he is smart, but a wise man knows himself.

——Shakespeare

17. If you are easy to say that you are strong, you will be short, and if you know your shortcomings, you will be long.

——Shen Juyun

18. I know that I don’t know everything, so I should be humble. This is enough to make me proud.

——Nabokov

19. This heart has its own truth, but it is not known by the truth.

——Dale Carnegie

20. The real fools, the fools that the gods use for fun or ridicule, are those who have no self-awareness.

——Wilde