1. Make bold assumptions and be careful to verify; work seriously and be a serious person.

2. Traveling thousands of miles and half the world, my eyes are high and there is no one in the sky.

3. Do not doubt the suspicious aspects of personnel, but doubt the inconsistent principles. It’s good to weave dreams, it’s good to weave dreams

4. Say as much evidence as you want, and harvest as much as you want.

It’s good to weave dreams, it’s good to weave dreams

5. Talk more about issues and less about doctrines.

6. The Americans came with bread and freedom; the Soviets came with bread but no freedom; they came with no bread and no freedom.

7. You can not beat something with nothing.

8. Tolerance is more important than freedom. It’s good to weave dreams, it’s good to weave dreams

9. Inventions are not for making money, but for mankind.

10. Reading without purpose is walking rather than studying.

11. The scientific spirit lies in seeking facts and truth.

Hu Shi also wants to avoid the pain of lovesickness. After thinking about it carefully several times, I am willing to miss the pain.

12. The fundamental spirit of science lies in the pursuit of truth.

13. Friends, when you are the most pessimistic and disappointed, that is when you must muster strong confidence. You must firmly believe that no effort in the world is in vain. Success does not have to be mine, but my ability will not be wasted.