1. Therefore, when Heaven is about to entrust this person with a great responsibility, he must first strain his mind and will, strain his muscles and bones, starve his body and skin, deplete his body, and mess up his actions, so his mind and forbearance are tempted. Gain what it cannot. ——Meng Ke's "Mencius"

2. When the year is cold, you will know that the pines and cypresses will wither. ——Confucius's "The Analects"

3. I want to hold the throat of fate, and it will never make me surrender completely. ——Beethoven

4. One of the great advantages of outstanding people is that they are unyielding in adverse and difficult encounters. ——Beethoven

5. A horse can leap but cannot move ten steps; a horse can ride ten steps, but the merit lies in perseverance; if you persevere, the rotten wood will not break; if you persevere, gold and stone can be carved. ——Xun Kuang

6. A good steel wire will emit strong sparks after being hammered. ——José Martí

7. The winds and frosts of the world are the place where we can refine our hearts; the warmth and coldness of the world are the place where we can endure. ——Shi Chengjin's "Heirloom"

8. As long as people have a belief and pursuit, they can endure any hardship and adapt to any environment. ——Ding Ling

9. Fire refines gold, and adversity tempers people. ——Seneca

10. Miracles often appear in times of bad luck. ——Bacon

11. It is difficult to be a master without suffering. ——Wu Chengen

12. Happiness does not depend on external causes, but depends on our attitude towards external causes. A person who is used to hard work cannot be unhappy. ——Leo Tolstoy

13. There is a road to the mountain of books, and diligence is the path; there is no limit to the sea of ??learning, and hard work is the boat. ——Han Yu, a writer in the Tang Dynasty

14. Adversity is a way to reach the truth. ——Byron

15. Whoever is not tortured will not have faith. ——Ingres "Ingres on Art"