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Since ancient times, those who study medicine have mostly focused on *Shanghan Lun* (Treatise on Cold Pathogenic Diseases), while neglecting miscellaneous diseases. This is because *Shanghan Lun* categorizes syndromes by meridians, making the pathways clear and straightforward, unlike miscellaneous diseases, which involve numerous categories and complexities that are difficult to master comprehensively. They fail to consider that Master Zhang Zhongjing (Zhang Ji) built upon ancient classical prescriptions and achieved their greatest synthesis. The one hundred and thirteen formulas in *Shanghan Lun* were all selected from formulas used for treating miscellaneous diseases; therefore, none of them cannot be used to treat miscellaneous diseases. The formulas specifically designed for treating miscellaneous diseases are found exclusively in the book *Jingui Yaolue* (Essential Prescriptions of the Golden Cabinet). If one can divine and elucidate its principles, it is sufficient to expound upon them without omission.

However, since the Song Dynasty scholars Cheng Wuji, Han Zhihe, and Pang Anshi, there have been countless commentators annotating and analyzing *Shanghan Lun*. Later, Mr. Zhou Yuzai from our region of Wu compiled three annotations, providing learners with even more subjects for study and admiration. Regarding *Jingui Yaolue*, during the Qing Dynasty, Xu Bin provided commentary notes. Although his explanations were clear and explicit, they were not as lucid and detailed as those of Zhao Yi-de (Zhao Liang) from the Song Dynasty. Thus, Zhou Yuzai supplemented what was lacking and elaborated on what remained unexpressed, naming it *Supplementary Annotations* (Buzhu). Combined with the *Yanyi* (Expanded Meaning), it formed a book titled *Jingui Yuhan Jing Erzhu* (Two Annotations on the Jade Box Classic). This benefit to future generations is considerable, making him a meritorious servant of Saint Zhang. Unfortunately, this book did not circulate widely, and the original blocks were soon destroyed by fire, preventing learners from owning a copy in every household, which is truly lamentable.

This spring, my friend Chunquan saw Ye Shi's *Medical Cases Preserved in Truth* and Ma Yuanyi's case records on my desk and urged me to publish them. We discussed this matter and sighed for a long time. We sought out manuscript copies but encountered many errors (such as miswritten characters like 'Lu' and 'Yu'). We then searched extensively for the original early prints and proofread them day and night, pooling funds to republish them for the world. This is an immortal achievement in the medical field; would not this merit be no less than that of Mr. Zhou? Now that I see the completion of this work, my accumulated worries are instantly relieved, so I record these brief remarks here.

Preface by Ye Wanqing of Changzhou, on the 16th day of the second month of winter in the Renchen year of the 12th year of Daoguang.

In the Han Dynasty, Zhang Zhongjing's medical theory was the most profound. He considered the category of cold damage (*Shanghan*) to be the most critical among diseases. Having written *Shanghan Lun* to clarify treatment methods, he also wrote *Jingui Yuhan Jing* as the standard for treating miscellaneous symptoms. He is the only figure since Qibo and Qin Yueren (Bian Que). Among later commentators, the Song Dynasty scholar Zhao Yi-de's *Yanyi* (Expanded Meaning) is the most exquisite. In the Qing Dynasty, Zhou Yangjun further supplemented the original text, integrating the understanding of Zhang Zhongjing's works as thoroughly as combining the Four Books and Six Classics. The annotations of these two gentlemen are akin to the exegesis of Zheng Xuan from Gaomi and the collected interpretations of Zhu Xi from Ziyang. In the 26th year of Kangxi, Ding Sikong, the Governor-General of Huguang, had the book printed in southern Chu. It has been over 140 years since then, and few copies exist in the world. Mr. Li Qingjun of Suzhou is a famous physician who has studied ancient texts exhaustively and treats diseases with miraculous efficacy. Upon obtaining this edition, he wished to make it public and thus commissioned its re-engraving. I first met Mr. Li in the Bingzi year of the Jiaqing era. At that time, I suffered from an illness where my left leg appeared two inches shorter, making it impossible to touch the ground. Mr. Li treated me for two months until I recovered. Nearly twenty years later, I still walk as briskly as a youth. In the Wuzi year of Daoguang, I traveled again to the banks of the Han River while ill and invited Mr. Li to accompany me. Mr. Li treated patients, curing them immediately upon administration of medicine; he also prepared medicines for me to distribute to others, all of which proved effective. People in the Han River region still praise him today. This is undoubtedly due to his profound medical attainment and sincere dedication. Publishing this book now continues his previous aspiration.

My younger brother, Hongqing, was also deeply versed in medicine and was closest to Mr. Li. He had begun reprinting *Shanghan Huoren Shu* (Living People Book on Cold Damage) but passed away before completing it. Mr. Li proposed to finish it so that it could circulate among friends alongside this book, demonstrating great loyalty and friendship. I have never practiced medicine, but recently, having engaged in Daoist cultivation involving the "Three Nis" (referring to the cultivation of Heaven, Earth, and Humanity), and studying texts such as *Jinbi Longhu Lingbao Bifa*, I have gained some knowledge of health preservation principles. Therefore, I read *Suwen* (Basic Questions), *Nanjing* (Classic of Difficult Issues), *Shanghan Lun*, and this book to cross-verify them.

I know that the essentials of medicine are contained within these four books. Mr. Li once said that this book allows physicians to attain immortality, and he suggested that I understood medical principles through my study of immortality arts. I replied that neither medicine nor immortality arts are within my reach, though I can certainly explain their principles. Mr. Zhao Yi-de's birthplace is unknown, and *Jingui Yaolue* is sometimes attributed to Ming Dynasty authors. Consequently, Mr. Li wished to remove the character "Song" from the preface. I argued that old editions should not be lightly altered, and moreover, the writing style is rich and profound, surpassing what typical Neo-Confucian scholars or Ming authors could achieve. Scholars of pure learning often hide their virtue and brilliance; one need not doubt their existence simply because historical records omit them.

Regarding Daoist texts, *Xinyin Jing* (Heart Seal Sutra) states: "The supreme drugs are three in number: Spirit, Qi, and Essence." *Taixi Jing* (Sutra of Fetal Breathing) states: "If you wish to live long, let Spirit and Qi merge." *Nanhua Jing* (Zhuangzi) states: "Do not look, do not listen; embrace Spirit in tranquility. When Spirit guards the Form, one may attain longevity." *Huangting Jing* (Yellow Court Sutra) states: "The inch-field and foot-house can nurture life; closing the gates of essence allows for long life." These are the fundamental guidelines for body, mind, and nature. If one adheres to and practices them, wind, dampness, cold, and heat cannot invade. Retaining one's form and prolonging life is not difficult; why worry about miscellaneous diseases? I asked Mr. Li about this, and he confirmed that my words were not false.

Preface by Chen Wenshu of Qiantang, in the eighth month of the Guisi year of Daoguang, at Miaoxiang Tian Studio in Suzhou.