The relationship between knowledge and action seems to be a special problem in China's philosophy. From pre-Qin to contemporary, philosophers have different opinions on the sequence, weight and difficulty of knowing and doing. Knowing and doing must be integrated, but it goes without saying. Wang Yangming discusses the unity of knowledge and action, but only thinks that the two go hand in hand in no particular order.
China's philosophy has hardly questioned this point for thousands of years. The reason is the pan-moralism of China Thought. If knowing and doing can be separated, as a scholar, "personality" has gone bankrupt.
In Tang Dynasty, Liu Zongyuan put forward the innovative idea of unity of knowledge and action. He believes that the psychological essence of human beings only comes from two aspects: essence and essence, the former is will, that is, action; The latter is knowing, that is, knowing.
Liu Zongyuan believes that people's highly developed psychology is mainly composed of two aspects: knowledge and action. The disadvantage is that he only pointed out such important facts, but did not understand them from the perspective of development, especially did not pay attention to the relationship between them.
In the Song Dynasty, I had a deeper understanding of knowing and doing. Zhu inherited Cheng Yi's theory and made valuable development, which is a very positive view. However, he still hasn't overcome the one-sidedness that knowledge precedes action and is more important than action, and he hasn't figured out where "what is always necessary" is.
Baidu Encyclopedia-Unity of Knowledge and Practice