1. People are more strong and unyielding in adversity than in adversity, and it is easier to protect their body and mind when they encounter bad luck than when they are lucky. ——Hugo

2. Even if he is slow, even if he keeps running, even if he falls behind, even if he fails, he can definitely achieve the goal he longs for. ——Lu Xun

3. If you don’t understand pain, you are not a good man. ——Hugo

4. The lofty goals that have not yet been achieved are more precious than the small goals that have been achieved. ——Goethe

5. It is difficult to implement, but it is the difficulty itself that attracts me. ——Balzac

6. Youth is the happiest time in life, but only the elderly know this. ——Anonymous

7. Difficulties are extremely serious teachers. ——Burke

8. There is no smooth road in science. Only those who are not afraid of hard work and climb the steep mountain road can hope to reach the glorious peak. ——Marx

9. The most difficult time is when success is not far away. ——Napoleon

10. When God gives people a bit of difficulty, it also adds a bit of intelligence to people. ——Hugo