Knowing is knowing, not knowing is not knowing, but knowing that I also studied the Analects of Confucius as a child, teachers always like to play it; Knowing is knowing, not knowing is not knowing, but knowing; This sentence is explained in this way-knowing is knowing, not knowing is not knowing, don't pretend to know, this is the real knowing. I've always found this explanation strange. Later, through my own study of traditional culture, I found that this sentence is not the case at all, and its truth is deeper than knowing the word. When talking about the Book of Changes, Professor Ceng Shiqiang of Taiwan Province Provincial University thinks that this sentence means to talk with people, to talk nonsense, and to speak according to other people's cognitive level to show their cognition, instead of asking others to reach the same level as you according to their own cognitive level, otherwise it will be difficult to communicate between people. At the same time, it also puts forward; Three seasons; The concept of, namely; Cordyceps sinensis can't talk to summer; In modern terms, you just can't say anything to others that is beyond others' cognitive level, otherwise you can't communicate, or you will be hurt unexpectedly. For the understanding of Professor Zeng, if you think about it carefully, it does make sense, just like Copernicus in those days, although it was put forward; Heliocentrism; Yes, but with the cognitive level of people at that time, it was impossible to understand this theory. It is also reasonable to burn him in order to maintain social stability. I appreciate Professor Zeng's understanding. I believe this should be a meaning of Confucius' saying this sentence. However, according to my understanding of ancient culture, people at that time had a very perfect dialectical view, and the dialectical thinking, inclusiveness and completeness of seeing problems have far exceeded the thinking ability of China people today. Therefore, with dialectical thinking, except; Cordyceps sinensis can't talk to summer; Outside, another meaning is; Winter worms don't know summer language; In other words, there are many things in the vernacular that we can't understand, perhaps because our cognitive level has not reached the corresponding height, not that these things are fake, or in other words, things don't exist because we can't understand. Combining the above two meanings, you can put; Knowing is knowing, not knowing is not knowing, but knowing; This sentence is understood as-people should clearly understand the cognitive level of themselves and the people they face, and communicate reasonably according to their cognitive level; Don't say anything beyond the cognitive level of the other party, don't do anything beyond the cognitive level of the other party, and don't easily believe or argue with the other party about anything beyond your cognitive level. This is the real knowledge, truth and wisdom of life. In recent years, I have often heard a lot of criticisms and insults against Confucius, Confucian culture, traditional martial arts, Chinese medicine and other ancient traditions. Many friends are very angry and argue with these people. Actually, that's why I don't know this famous saying. The former is misunderstood because the cognitive level is too low to understand and understand. This should be normal. The latter is because you don't know that your cognitive level has surpassed each other. You know, the other party doesn't understand at all, and it's useless for you to argue. If you really understand these truths, you can laugh at many things. Professor Ceng Shiqiang once said that if you understand this truth, you can live at least ten years longer. I think, if we can really apply this truth everywhere in our life, we will not only live for ten more years, but also have a much more interesting life, and our ability to deal with various things and interpersonal relationships will also undergo qualitative changes. Between people, between countries, there will be differences in cognitive level due to different cultures, experiences and horizons, and it is precisely because of the differences in cognitive level that contradictions will arise. And if you can really understand what Confucius said more than two thousand years ago; Knowing is knowing, not knowing is not knowing, but knowing; The meaning of this sentence, I believe that no matter in dealing with interpersonal relationships or international disputes, it will have a good effect and can make progress together, instead of doing some unnecessary and ignorant arguments and struggles. Including the ideological differences and cultural differences now, in the final analysis, they are all cognitive differences. The only way to balance cognitive differences is to be more tolerant, tolerant of what people know and tolerant of what people don't know. At work, I often encounter some similar things. Sometimes my colleagues complain that our customers are not good at communication. Later, I summarized that the reason for poor communication is that our colleagues are too professional and the planners are very creative. It can be said that there is nothing wrong with them professionally. But the biggest problem among them is that they are too creative, and our customers are not professional and their cognitive level is simply wrong. Every time I hear such words, I think it's just difficult to communicate now. Hundreds of years earlier, I might worship you like Copernicus (joke). In fact, there are only two ways to deal with such a thing. First, try to make the customer's cognitive level consistent with yours. Second, adjust your creativity according to the customer's cognitive level. Of course, if something is really too advanced to be recognized by others for a while, then don't say it, don't say anything. Let time prove everything. As long as human beings make continuous progress, most people will reach this level of cognition one day. It's best to keep an attitude of believing what is beyond your cognitive level, otherwise it's easy to make people laugh and feel ignorant. Because for some things that ordinary people can't understand, people who really understand are not willing to explain too much to you. On the one hand, they will think that you won't believe them, on the other hand, they will think that it is meaningless to tell you. Treat everything in the world with dialectical thinking, treat all people and things with an inclusive attitude, and be calm. This is the wisdom of Confucius, yes; Say you know when you know, and say you don't know when you don't-that's knowledge.