I learned books from my uncle, and later from Mrs Wei, which showed me the famous calligrapher since the Han and Wei Dynasties, Zhang Zhi in cursive script, and Zhong You in formal writing. I am good at being a good official, careless, upright and upright, versatile, learning from others and preparing various styles. I got rid of the writing style of Han and Wei dynasties and became a family of my own. The brushwork is open and bright, and the structure is rigorous. Preface to Lanting is the most important book; The running script is phoenix chrysanthemum. The cursive "Chu Mu Tie" is the most popular. The regular script Huang Tingjing and Yue Yi Lun are the most important. As a national treasure, Emperor Taizong called on the world to copy his calligraphy, and his calligraphy became authentic instead of Han and Wei brushwork. His calligraphy is known as "floating like a cloud, deft as a dragon" and "iron book and silver hook, the best in ancient and modern times". Later generations of Buddhas are called "book saints", and there is no original work, so they are copied from generation to generation.