What is Sima Guang's Purple Tongzhi Sword about?

Zi Tong Zhi Jian written by Sima Guang is the first chronological general history in the history of China, which records the history from the 23rd year of the reign of King Zhou (403 BC) to the 6th year of Zhou Xiande (959 BC) after the Five Dynasties. This book has a wide selection of materials, besides the official history, it also uses more than 320 kinds of unofficial history miscellaneous books, and the historical materials are very strict, and the contents are more informative and credible, which has always been highly praised by historians. The writing significance of Zi Tong Zhi Jian has gone far beyond Sima Guang's original intention of writing history to govern the country. It not only provides reference for rulers, but also provides rich knowledge for the whole society. It is called the treasure of history, which is widely circulated and enlightens the public. And researchers have been handed down from generation to generation, making it a special knowledge, that is, Tong Jian.

Lu You was an outstanding patriotic poet in the Southern Song Dynasty. He is famous for his patriotic thoughts and outstanding poems. His Family Instructions for Leaving Weng was written in Dadao for four years (1 168) to warn future generations. Although the lifestyle advocated by Lu You in his book is mostly trivial matters of daily life, people should guard against and ponder over it, and many of them are still good words.

Lv Benzhong's Official Proverbs in the early years of Southern Song Dynasty is the accumulation of thoughts and experiences of officialdom cultural thinkers for thousands of years. There is only one volume in the book, which is concise, and each article is unprecedented and truly unique. The book sums up the three-character formula of the method of being an official: "clear, cautious and diligent", which is praised as "eternal" by later scholars and scholars, with far-reaching influence and widely quoted by later scholars and officials. Although "Official Proverbs" was written to punish officials and talked about the requirements of being an official, many of its ways of dealing with the world are also of reference significance to ordinary people.