In BC 155, Liu De, the third son of Liu Qi, Emperor Wu of the Han Dynasty, was made king of Hejian. Liu De likes Confucianism very much. His clothes, words and deeds are imitated by Confucian scholars, and many Confucian scholars in Shandong are attached to him. At that time, Confucianism had not yet become orthodox. After the war at the end of Qin dynasty, there were few ancient books and scholars left, and Confucianism was difficult to recover. At this time, Hejian Wang Liude rose in due course.
Liu De has been king for 26 years, but he has never been involved in the political whirlpool of the king's struggle for power and profit. On the contrary, he devoted his whole life to collecting and sorting out China cultural ancient books. In order to collect books, Liu De traveled all over Luoyang, Shandong, Hebei and other places. He is not afraid of hard work and practice. Anyone who hears of a good book among the people will personally buy it with a large sum of money and order someone to make another one for the people. He wants what he doesn't want to sell and never takes coercive measures.
This was difficult for most rulers at that time, so Liu Dexian became famous. Many intellectuals traveled thousands of miles to bring their ancestors' old books to Liu De. For these people, Liu Dejun gave them reuse and bonuses. His works include Poems, Zuo Zhuan, Zhou Guan and Book of Rites, and there are dozens of them. Liu De died in Guo Feng in 130 BC. His works were sought after by intellectuals, and Ban Gu made a biography of him in Hanshu. At the beginning of his biography, he commented on Liu De's "seeking truth from facts".
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"Being pragmatic and seeking truth" is the basic attitude that everyone should have in pursuing the authenticity of things when dealing with things. The so-called "seeking truth" means "seeking truth", that is, in accordance with the ideological line of emancipating the mind, seeking truth from facts and keeping pace with the times, constantly understanding the essence of things and grasping the laws of things. The so-called "pragmatism" means doing and practicing under the guidance of this regular understanding.
It is precisely because of his pragmatic and rigorous attitude that Liu De devoted his life to the collection and collation of ancient books, winning the support of intellectuals all over the world and winning his reputation.