1. We can accept disappointment, because disappointment is limited; but we must never reject hope, because hope is unlimited. ——Martin Luther King

2. Life is like an ocean. Only those with strong will can reach the other side. ——Marx

3. You can go a day without eating, you can go a day without sleeping, and you can't go a day without reading books. ——Mao Zedong

4. The so-called genius is just using the time that others spend drinking coffee on work. ——Lu Xun

5. Climbing the peak of science is like a mountaineer climbing Mount Everest. It has to overcome countless difficulties and obstacles. It is impossible for cowards and lazy people to enjoy the joy and happiness of victory. ——Chen Jingrun

6. On the road of scientific exploration, a person has taken detours and made mistakes. It is not a bad thing, let alone a shame. One must have the courage to admit and correct mistakes in practice.

——Einstein