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My nephew, You Zaijing, studied Confucian classics in his childhood and mastered medicine in his adulthood. He had thoroughly integrated ancient medical texts and formulas, yet when treating diseases and prescribing, he strictly took Zhang Zhongjing as his master. Having saved many lives through his medical practice, he worried that this Dao might not be revealed to future generations. Therefore, he annotated Zhang Zhongjing's *Jingui Yaolue* (Essential Prescriptions of the Golden Cabinet), which is known in the world as *Jingui Xindian* (Inner Classic of the Golden Cabinet). Additionally, he selected discussions on miscellaneous diseases, compiling them into eight volumes. These volumes detailed their syndrome manifestations and analyzed treatment methods, distinguishing between exterior and interior, deficiency and excess, and explaining the application of tonification, purgation, warming, and cooling therapies. Opening the book, one could see clearly as if looking at one's own palm. Alas! This knowledge has been difficult to comprehend for a long time. Now seeing this book, how profound and clear it is! I regret that I have not been able to see his annotation of Zhang Zhongjing's *Shanghan Lun* (Treatise on Cold Damage Diseases), titled *Guanzhu Ji* (Collection of Beaded Pearls). However, You Zaijing was not only famous for his medicine; his poetry strictly followed Du Fu as a model, just as his medicine strictly followed Zhang Zhongjing.

In the year Wuzi of the 33rd year of Qianlong (1768), Yueyan Laoren Shifu wrote this at Siyong Hall, Shantang, Huqiu Mountain.

When I, Shinan, was ten years old, I moved with my father to Huaxi. Four years later, my grandfather passed away. The time I spent serving him was short, but what I frequently heard from my father's narration about him was: My grandfather was the third son of my great-grandfather. My great-grandfather owned a thousand mu of land. My great-uncle, Dinghuang Gong, was implicated without guilt, and the family property was almost sold off. When the estate was divided, my grandfather received only thirty mu of land. Later, due to certain matters, he abandoned it and became a commoner. On a certain New Year's Eve, as the night watches changed, there was not a single grain of rice in the vat. My grandmother and father sat desolately in a room with a dimming lamp, while my grandfather was selling calligraphy in a Buddhist temple. When morning light penetrated, he returned carrying firewood, having exchanged dozens of coins for rice. When he first began practicing medicine, he was not yet famous. My grandmother assisted with acupuncture to support our livelihood. In severe cold, after several rooster crows, she still had not put down her needle and scissors, and ultimately fell ill because of this. My grandfather mourned her deeply and did not take concubines or visit his wife's natal family for twenty years. Although very poor, my grandfather associated with prominent figures of the time, such as Fang Donghua from Panyu, Shen Fangzhou from Qiantang, and Hong Dong'an from Ningguo. Gentlemen from the same commandery, including Gu Xiuye, Shen Guiyu, Chen Shuzi, Xu Longyou, Zhou Yucun, and Li Keshan, all lowered their status to associate with him. Since I understood worldly affairs, I never saw any casual guests visiting. His nature was calm and quiet, indifferent to fame and profit. In his later years, treating patients was quite busy; whenever he had free time, he would read books, water flowers, feed cranes, and watch fish, to satisfy his secluded, leisurely, tranquil, and indifferent mood. Occasionally, he composed classical prose and examination essays, resembling Jingchuan, but this was not his primary focus. In the year Jisi, he fell ill, refused medication, fasted, and awaited death. The day before passing away, he asked for paper and pen to write farewell poems to his fellow scholars. His poetry, calligraphy, and paintings were as vigorous as usual. The poem read: "Coconut gourd and pine dust share a past affinity, / Friendship has lasted thirty years till now. / Passing the cup along the winding stream should have successors, / Painting walls in taverns humbly precedes us. / Illness comes, like Xie Lingyun, spring has no share for me; / Old age arrives, like Tao Yuanming, wine is already given up. / From now on, news and traces are completely cut off, / How can new poems reach the spring again?" This was likely his last words. Several medical books he authored have been printed: *Jingui Xindian Jizhu* (Collected Annotations on Inner Classic of the Golden Cabinet), *Yixue Dujilu* (Records of Reading Medical Books), and two volumes of *Beitian Yingao* (Poems from Beitian), all of which have become popular and widely appreciated. In his youth, my grandfather studied medicine under Mr. Ma Yuanyi. Mr. Ma was famous, with countless followers. In his later years, he was very pleased to meet my grandfather, telling his wife, "Today I have gained one person, which is better than gaining thousands." Later, Mr. Ma wrote many books, all discussed and refined by my grandfather before being transmitted. This shows the outstanding insight of the senior generation.

Recorded by Grandson Shi Nan.

This is the family biography written by Mr Aigu. Mr. Aigu's character and scholarship were renowned among the elders of Wuzhong. Reading his family biography now, I am even more convinced of the deep roots of his family learning. Yingxian recorded this calmly.