1. If we admit failure too readily, we may not realize that we are very close to being right. ---Karl Popper

2. The same is true for "difficulty". Facing a cliff, you can't see a crack in a hundred years, but with an axe, you can get in inch by inch. Step by step, keep accumulating, leaps will come, and breakthroughs will follow. ---Hua Luogeng (China)

3. I really want to invent a feature or machine with such terrible large-scale destructive power that war will become impossible forever. ---Nobel (Sweden)

4. Only by obeying nature can we control nature. --- Bacon (UK)

5. The ocean of truth lets all things undiscovered lie before my eyes for me to explore. ---Newton (UK)

6. The benefits of fallacy are temporary, while the benefits of truth are permanent; when truth has drawbacks, these drawbacks will be eliminated soon, while the drawbacks of fallacy will Always with the fallacy. --- Diderot (France)

7. Anyone who takes the truth lightly in small matters is also untrustworthy in big matters. ---Einstein (USA)

8. Man's bounden duty is to have the courage to explore the truth. ---Copernicus (Poland)

9. I don’t know what people in the world think of me. But I think of it this way: I seem to be a child playing on the sea, sometimes finding a smooth stone, sometimes finding a beautiful shell and being happy about it. Despite this, the ocean of truth mysteriously opens before us.

---Newton (UK)

10. Don’t be superstitious about books or authority (Wright, Son)