It is more important to ask questions than to solve them. -Einstein

There is no doubt that if you are a student, doubt will make progress, small doubt will make small progress, and big doubt will make great progress. -Lu Jiuyuan Song

The problem is the midwife, which can help the birth of new ideas. -Socrates

6. Questioning is not questioning. "Only a real singer can sing the silence in people's hearts". -Chai Jing

9. In people's minds, there is a deep-rooted need to be a discoverer, researcher and explorer. This demand is especially strong in children's spiritual world. -Suhomlinski

10. Questioning is the first step towards philosophy. -Diderot

1 1. You can't see the truth without doubt. -Li Siguang

12. People who don't ask are always with ignorance. East Africa

13. It is an inevitable development stage for everyone with high ideological level to question customs from all aspects. Emerson

14. Open all the keys to science. There is no doubt that there is a question mark. -Balzac

15. Those who study without doubt will be taught to have doubts, and those who have doubts will have no doubt. Only here can they make progress. -Zhu

16. The ear has no bottom and can be heard from morning till night. -Africa

17. Curious people are only fools for five minutes; He who is ashamed to ask questions is a fool all his life. anonymous

18. Skepticism is an important part of scientific spirit. -Zhou

19. A good questioner, for example, conquers a difficult problem, first makes it simple, then saves himself, and talks with the other party for a long time to solve it. People who are not good at asking questions are the opposite. -Yukime

20. People who are good at doubting don't doubt what others doubt, and those who doubt don't doubt. -Fang Yizhi

2 1. Learn from doubts and analyze doubts from friends. Li Xing