Three thousand years ago, Zhuangzi left us with a difficult problem: whether the butterfly dream is a human dream or a butterfly dream on earth. Please tell us what you think of this.

Philosophically, this problem is very complicated. Zhuangzi divided the world subjectively and objectively by Dream Butterfly and Wake up Zhuang Zhou. But Zhuangzi thinks that "Zhuang Zhou Butterfly Dream" or "Zhuang Zhou Butterfly Dream" is very problematic-because no matter whether we look at the world from Zhuang Zhou or butterflies, there are people's perceptual activities in it, and we can't prove that our feelings are permanent and reliable, so we can't say whether the knowledge about the external world obtained by relying on this sensibility can provide us with a real world. In fact, many phenomena that we take for granted in real life, we think are true only because we feel accustomed to them; For example, physics has revealed that color is not an objective thing, and color is just a feeling produced by different wavelengths of light acting on our visual cells. The taste is the same, hot and cold and so on. It can be seen that our relationship is unreliable. According to the principle of lens imaging in physics, the world we see should be upside down. It is only because of the long evolution and habitual accumulation that people's eyes "feel" upright. In this way, can you get real knowledge by senses and feelings? Many things we take for granted may be a helpless agreement, which is really not a mysterious problem. This is the famous proposition that has been circulating for two thousand years-"Zhuang Zhou Meng Die". Therefore, in Zhuangzi's view, the only real existence that can be said is Tao. Therefore, Taoism advocates "abandoning saints and wisdom" and "doing nothing", because any other activities are meaningless except understanding, epiphany, obedience and respect for Tao. In the west, Kant, Hume and others echoed each other and expressed similar views. It can be said that this is the most challenging proposition in philosophy. As far as the understanding of the world (including human beings themselves) is concerned, the expansion of every inch of human rationality requires great efforts-because people depend on the "limited existence" of this world, her rationality may also have irreparable defects, just as people can't mention themselves by pulling their hair. ......