I don't remember any famous person saying that "the truth is in the hands of a few people", and the minority must obey the majority. In the end, the truth is still in the hands of most people, and that's how people follow suit. The first man said a word, and the second man heard it and told him. At this time, the third person objected, and the fourth person saw that there were two people on one side and only one person on the other side, so he followed them. You can see that there were many people at that time.
Maybe you will have a similar experience with me. When answering the teacher's question, your answer is obviously different from most people's, but you parrot the answers of most people. When the brave man gave different answers, the teacher said that only he was right. At this time, you find that your answer coincides with his. In fact, parroting is hypocritical, fearing that you will be laughed at if you answer wrong.
As long as we get it through thinking, no matter how much resistance there is, we must stick to it. Edison came to the conclusion after repeated thinking that there is always a substance that can emit light when it is electrified. But at that time, many authoritative scientists agreed that this idea was impossible and unscientific. However, Edison firmly believed in his idea and finally invented the incandescent lamp. Therefore, as long as you really think about it, you can boldly doubt all the "truth" around you. Many philosophers and scientists found problems in the process of learning, so some scholars overturned or supplemented them. Truth can only be found in exploration, and only by boldly doubting on the basis of predecessors can we learn more nutrition from it, make continuous progress and get closer to the truth.
There are doubts about learning expensive, yes. But you can't just doubt it. Doubt for the sake of doubt. Have you ever doubted that Jordan can play basketball? Do you suspect anyone wants to eat? We can't go from one extreme to the other. Learning is more important than doubt, so learning should be put in the first place. Learning and doubt cannot be juxtaposed, because doubt is only the behavior that conflicts with the formula conclusion in your learning process. So, don't blindly doubt without thinking. You may ask, we suspect this and that. Actually, it's not like this. Because people are born with doubts, do you accept everything others say without reservation? Without thinking, I completely believe that it is ideological laziness. Such a brain is always passive. On the contrary, only a brain that often doubts and asks questions will have questions, seek answers and explore deeper.
If later scholars stick to the old saying of predecessors, there will be no new problems and discoveries, all academic research will stagnate and human culture will not progress. Our textbooks are constantly changing. Why? This is because there are imperfections or mistakes in the book. Why did you find them? Because of the spirit of doubt, although we study on the shoulders of our predecessors, there will be gaps on their shoulders, which need to be filled with "learning is expensive and suspicious"
So I think-learning is expensive and doubtful.