Yan Zhenqing has many "perfect" works, such as the structure of the Tablet of the Pagoda is correct and meticulous; The Legend of Magu Fairy Altar is vigorous and powerful; The Tang Dynasty Zhongxing Stele is square and stable without showing its muscles and bones; Yan Qinli Stele is vigorous and rigorous... In addition to these perfect calligraphies, Yan Zhenqing also has a special draft, "Nephew Worship Manuscript". Writings for Tribute to Nephews written on hemp paper 28.3 × 75.5 cm, now in the Palace Museum in Taipei, is a treasure of calligraphy. This character surpasses his other calligraphies and is called the second best running script in the world, second only to the Preface to Orchid Pavilion written by Wang Xizhi, the "Sage of Calligraphy". As an "imperfect" draft work, the "Manuscript for Tribute to Nephews" has more than 30 smears. How did it win the second place over the works of Yan Zhenqing and other great calligraphers? He saw his family fall into a pool of blood one by one. Yan Zhenqing was born in Langya Yan family. In the 22nd year of the Kaiyuan era of the Xuanzong Emperor, he was a scholar and served as the supervisor of the imperial historian, the imperial historian in the palace, etc. He was very diligent and wrote the "Poem of Persuading Scholars" to discipline himself: it was during the third watch and the fifth watch that men were studying. Black hair does not know how to study early, while white hair regrets that he studies late. When he was young, he was infatuated with calligraphy. He once looked up to Zhang Xu, the most famous calligrapher of his time, as his teacher. At that time, Zhang Xu did not accept disciples. Yan Zhenqing came to him for advice again and again. He treated Zhang Xu with respect wherever he met. Zhang Xu was finally moved and taught him the twelve meanings of his brushwork. Yan Zhenqing's calligraphy is square and vigorous, and his muscles and bones seem to have great power. In fact, there is a reason. He is not only a calligrapher, but also an idealistic scholar. He is also a general, who fights on the battlefield, kills decisively, and has courage and strategy. Yan Zhenqing was just as upright as his calligraphy, and refused to collude with others, so he offended Yang Guozhong, who demoted him to the Plains Prefecture as the imperial guard. Although Pingyuan County is not under the jurisdiction of Anlu Mountain, it is only a few days away from Anlu Mountain. When Xuanzong and his imperial concubine were paralyzed by Anlu Mountain, sensitive Yan Zhenqing realized that Anlu Mountain was harboring evil thoughts. In order to guard Pingyuan County safely, Yan Zhenqing pretends to gather people to drink and have fun every day. He looks like a useless mediocre, which makes Anlushan relax his vigilance. In the dark, he built the city wall, hoarded food and grass, and prepared for the war at any time. Because he was so well prepared, when Anlushan rebelled, Yan Zhenqing not only held the station, but also led the rebel troops to attack bravely and recover Hebei. The Yan family is a famous family, each stationed in one side. Yan Zhenqing is stationed in Pingyuan County, and his brother Yan Gaoqing's family is stationed in Changshan, which is under the jurisdiction of Anlu Mountain. After the chaos of An Shi, Yan Gaoqing led his family and army to fight against the rebels, but they were surrounded by An Lushan and Shi Siming because of the corruption and poor support of the Tang army. An Lushan plans to persuade Yan Gaoqing's family to surrender. The family vows not to obey and scolds the rebels for being shameless. An Lushan becomes angry with shame and maltreats Yan Gaoqing's broken tongue and limbs to death. Before his death, he maltreated Yan's family. He saw them fall into a pool of blood one by one - no matter how miserable, no one would surrender. In this fierce war, the Yan family suffered more casualties than the royal family, which shows that the Yan family is staunch and loyal. Yan Gaoqingyi