The famous sayings about self-improvement and self-confidence are as follows:

1. Wealth cannot be immoral, poverty cannot be moved, and power cannot be surrendered. --"Mencius, Duke Wen of Teng".

2. The strong wind knows the strong grass, and the rough wind knows the honest minister. --Li Shimin's "Giving Xiao Yu".

3. There are many difficulties in front of you. Since ancient times, men should strive for self-improvement. --Li Xianyong's "Gift to People".

4. If you strengthen yourself through self-cultivation, you will be worthy of Yao and Yu. --"Xunzi·Cultivation of the Self".

5. Don’t betray for the sake of poverty, and don’t change your mind for the sake of lowliness. --Huan Kuan's "Salt and Iron Theory·District".

6. Don’t be afraid of being shattered into pieces, and remain innocent in the world. --Yu Qian's "Song of Lime".

7. Where there is a will, there is a way. -- "Book of the Later Han·Biography of Geng Yan".

8. A person with lofty ideals and benevolence will not harm his benevolence by seeking life, but will kill himself to achieve benevolence. --"The Analects of Confucius·Wei Linggong".

9. Fame and integrity are more important than Mount Tai, but profit is less important than a feather. --Yu Qian's "Untitled".

10. He who conquers others is powerful, and he who conquers himself is strong. --Chapter 33 of "Laozi".

11. He who can defeat a strong enemy is the one who wins first. --"Shang Jun Shu·Painting Strategy".

12. The sparrow knows the ambition of the swan! --"Historical Records·Chen She Family".

13. If you hear the Tao in the morning, you will die in the evening. --"The Analects of Confucius·Liren".

14. Don’t blame God or blame others. --"The Analects·Xianwen".

15. Those who accomplished great things in ancient times not only had extraordinary talents, but also had perseverance. -- Su Shi's "Chao Cuo Lun".

16. If the sky is healthy, a gentleman will strive to strengthen himself; if the terrain is weak, a gentleman will be virtuous. -- "Book of Changes".

17. Whoever plays life will accomplish nothing; whoever cannot master himself will always be a slave. -- Goethe.

18. Careers are often built by perseverance and destroyed by quarrels. --Iran.

19. Failure is the final test of perseverance. --Bismarck.

20. Victory belongs to the perseverant. --U.K.