When doing anything, you must have a spirit of skepticism, so that you can constantly analyze and think, avoid detours, and constantly adjust yourself

Mencius once said: "It is better to have no books than to have no books at all."

Break the casserole and ask the question

"The question mark is the key to opening any science---- Balzac

“Smart, eager to learn, and not ashamed to ask questions, this is why he is called ‘literary’. ”