In real life, many people like history, but liking it does not mean that they can actually read history. In Cheng Yi's view: "Whoever reads history must not only record deeds, but must understand the reason for its survival in the treatment of chaos, safety, and security." And if you read the Gao Emperor's Chronicle, you must understand how the Han family began to rule the chaos at the end of the four hundred years. Yes also learn also. That is to say, Cheng Yi believes that when we read history books, we can't just record some deeds, watch and play, but we must figure out the truth of the rise and fall of those peaceful and dangerous in history. For example, if you read Liu Bang Benji, the ancestor of Han Gao, you should find out what the Taiping turmoil of the four hundred years of the Han Dynasty (Western Han and Eastern Han) was like. This is also learning.
Tang Taizong has a cloud that "takes history as a mirror and can know the rise and fall", so when we read history, we must think more about what is worth learning and learning from, and we can't just read and play? Reading the history of Liu Bang, we should think about why Liu Bang was able to defeat Xiang Yu. Why the Han Dynasty established by Liu Bang can be in peace and stability for a long time compared to the Great Qin Dynasty established by Qin Shi Huang, etc. I seriously think about it and will definitely gain something!
![Cheng Yi talked about the affairs of the world: determination, responsibility and seeking talents[fig]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)