1. Bravery is the light that shines in adversity.

2. Sacrificing one’s life in a national disaster, treating one’s death as if one were returning home.

3. There is no herb that can cure cowardice.

4. The establishment of great achievements in life is not about knowing, but about being able to do it.

5. Courage is the inevitable result of wisdom and a certain degree of education.

6. How great is your sincerity, the world is moving, like a tripod with three legs, it is called wisdom, benevolence and courage.

7. Whoever fears will be tormented and is already tormented by his fear.

8. Something always starts from nothing; it is created by two hands and a smart head.

9. You should be like a cypress tree. The strong wind will break the tree, but the huge trunk will always stand straight.

10. Science is an honest thing, and it relies on the labor and wisdom of many people to accumulate.

11. Labor is the foundation and means of human existence, and the source of a person's physical, intellectual and moral perfection.

12. A person who can see things from other people's perspectives and understand other people's mental activities will never have to worry about his own future.

13. People who think pain is the greatest misfortune cannot be brave; people who think enjoyment is the greatest happiness cannot be temperate.

14. A truly brave person should be able to endure the most embarrassing honor and disgrace wisely, not care about the honor and disgrace outside the body, and avoid unnecessary misfortune with a calm attitude.

15. Those who dare not step forward when their blood is boiling and their reason allows it are cowards; those who continue to advance after achieving the expected goal are villains.

16. 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.