How to understand the meaning of "the historian's swan song, Li Sao has no rhyme"

Lu Xun's evaluation of Records of the Historian is that "historians never sing, leaving Sao without rhyme".

The farewell song of historians is the historical value of Historical Records, saying that it is a "farewell song" in historical works; Li Sao Wu Yun is to evaluate the literary value of Historical Records, and its beautiful wording is as beautiful as Li Sao. This is an unparalleled work by historians.

The literary talent of Historical Records has always been praised by China's literary circles, which initiated China's biographical literature.

Sima Qian, like an excellent painter, sketched vivid portraits for us with his vivid brush. Like a sculptor who is good at capturing moments, he has created statues of different styles for us with his sharp carving knife.

Sima Qian creatively integrated literature and history into one furnace and wrote an image history for us. Therefore, Mr. Lu Xun praised Historical Records as "the swan song of historians, leaving Sao without rhyme".

Sima Qian (former145-no textual research) was born in xia yang (now south of Hancheng, Shaanxi). Historians and essayists in the Western Han Dynasty. Sima Tan's son, Ren Taishiling, was imprisoned for defending Li Ling's defeat and surrender, and later served as the secretariat.

He worked hard to complete the historical records he wrote, and was called Shi Qian, Tai Shigong and the father of history by the later Buddha.

Writing background:

Sima Qian began reading, sorting out historical materials and preparing for writing after the third year of Yuanfeng (BC 108), and basically completed all the writing plans in the fourth year of Taishigong (BC 93), which lasted for 16 years.

This is a great work written by him with all his life energy, painstaking efforts and great physical and mental pain, which always shines brilliantly.

The book includes 12 biographies, 30 aristocratic families, 70 biographies, 10 tables, 8 books and 5 * * * parts, covering about 526,000 yuan.