There is no doubt that if you are a student, you will make progress if you doubt. It may mean: in learning, you have to worry that you can't ask any questionable questions; If you ask questionable questions, you will make progress.
People who know their shortcomings are eager to learn, and those who are ashamed to ask questions to people who are not as good as themselves are complacent.
The education of children is a headache for every parent. There are some movies suitable for parents and children to watch together, from which they can be inspired