1. Iron becomes harder as it is refined. ——Gorky

2. Only pain can bring joy. ——Beethoven

3. Suffering is the teacher of life. ——Balzac

4. You are not afraid of difficulties, difficulties are afraid of you. ——Britain

5. Through suffering, move towards joy. ——Beethoven

6. Those who have always governed a country would rather not forget the fishermen and woodcutter. ——Xie Zhen

7. Stone can be sharpened to turn dullness into sharpness. ——Liu Yuxi

8. Difficulty is a severe mentor. ——Baker

9. I want to seize fate by the throat. ——Beethoven

10. Disaster itself is a good medicine. ——Copper

11. Difficulties are extremely serious teachers. ——Burke

12. Perseverance is the shortcut to reaching your destination. ——Anonymous

13. The husband is precious and unyielding, so success or failure does not matter. ——Lu You

14. Nothing is difficult in the world, as long as you are willing to climb.

15. A stone without a feather is not afraid of danger and hardship. ——Li Bai