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The preface also states: "In compiling this work, I utilized the *Suwen* (Basic Questions) nine volumes, the *Nanjing* (Classic of Difficult Issues), the *Yinyang Dalun* (Great Treatise on Yin and Yang), the *Tailu Yaolu* (Record of Fetal Development and Pharmacology), combined with pulse differentiation and syndrome identification, to compose the *Shanghan Zabing Lun* (Treatise on Cold Damage and Miscellaneous Diseases), totaling sixteen volumes." Generally, the three Yin and three Yang syndromes of cold damage originate from the *Suwen* nine volumes; the categories such as cold damage, wind strike, and warm disease are based on the *Nanjing*. As for the *Yinyang Dalun*, although it is unknown which specific book it refers to, it is essentially a compilation of ancient canonical texts. Therefore, it is not entirely Zhang Zhongjing's original theories and prescriptions.

Wu Cheng of the Yuan Dynasty wrote the preface to his *Huoren Shu Bian* (Differentiation of the Living Person Book), stating: "Zhang Zhongjing of the late Han Dynasty authored the *Shanghan Lun* (Treatise on Cold Damage). I often sighed that the literary style of the Eastern Han did not compare to that of the Western Han. Only in medical literature does this book stand out, profound and elegant, shining like the literature of the Xia, Shang, and Zhou dynasties. I found this strange. However, upon seeing Zhang Zhongjing's humble self-deprecation in the preface, I realized that the preface was indeed written by Zhang Zhongjing himself, and the *Shanghan Lun* is actually the ancient *Tangye Lun* (Treatise on Decoctions). It is likely a surviving text from antiquity, which Zhang Zhongjing merely compiled and edited." Wu's theory originates from Huangfu Mi (courtesy name Shian), but its validity cannot be definitively established. Nevertheless, regarding the evolution of literary styles, even if non-medical scholars cannot match it, it serves as a valuable reference for textual research.

Lin Yi and others stated in their collated preface: "Zhang Zhongjing has no biography in the *Book of Han* (Hanshu), but appears in the *Records of Famous Doctors*. According to the preface of Huangfu Mi's *Jiayi Jing* (Systematic Classic of Acupuncture and Moxibustion) and the *Biography of Huangfu Mi* in the *Book of Jin* (Jinshu), his reputation at the time was evident. Since the Jin Dynasty was not far removed from the Han Dynasty, his account is credible. Although Zhang Zhongjing lacks a biography in the *Hanshu*, he was undoubtedly a figure of the late Han Dynasty." The *Book of Later Han* (Houhanshu) records in the Biography of Liu Biao: "In the third year of Jian'an, Zhang Xian, the Administrator of Changsha, led the three commanderies of Lingling and Guiyang to rebel against Liu Biao. Liu Biao sent troops to besiege and defeat Zhang Xian." The *Heroic Records* (Yingxiong Ji) notes: "Zhang Xian was from Nanyang." He was likely a clansman of Zhang Zhongjing. Was it possible that after Liu Biao defeated Zhang Xian, Zhang Zhongjing succeeded him?

Lin Yi's collated preface further states: "Since Zhang Zhongjing, eight hundred years have passed. Only Wang Shuhe could learn from him." Cheng Wuji also said: "Zhang Zhongjing's works have reached us over a millennium. Their prominence in the world is due to Wang Shuhe's efforts." Zhang Zhongjing's texts were fragmented and disordered after the wars of the Three Kingdoms. Without Wang Shuhe's compilation, they would not have survived to the present day; his merit is immense.

However, during the Hongwu era of the Ming Dynasty, Huang Xi of Xiangxi wrote *Shanghan Leizheng Bianhuo* (Discernment and Confusion Regarding Cold Damage Syndrome Differentiation), arguing: "Zhang Zhongjing's book covers only from the Six Channels to fatigue recovery. It contains 397 methods and 113 formulas, meticulously complete and orderly. The chapters 'Bian Mai' (Differentiating Pulse), 'Ping Mai' (Leveling Pulse), and 'Shanghan Li' (Cold Damage Examples) were collected by Wang Shuhe from various sources, appended with his own opinions. Although they occasionally contain Zhang Zhongjing's words, they fall outside the scope of the 397 methods. The chapter on 'Dampness' comes from the *Jingui Yaolue* (Essential Prescriptions of the Golden Cabinet), yet Wang Shuhe erroneously placed it after the Six Channels sections. He also recompiled discussions on the indications and contraindications of sweating, vomiting, and purging, along with post-treatment syndromes, at the end of the volume." This view originated from Wang Lv's *Suhui Ji*, who believed the *Shanghan Li* was Zhang Zhongjing's original text. Subsequently, Fang Youzhi, Yu Chang, Ke Qin, and others followed this view, either refuting or denigrating it. For instance, regarding the Preface and Examples, they claimed these were gathered from Zhang Zhongjing's old theories. The *Waitai Miyao* cites them attributing them to Wang Shuhe, implying Wang Shuhe authored this section rather than forging it. As for the chapters on Pulse Differentiation, Leveling Pulse, and Purging Indications, Wang Shuhe cited them in his *Mai Jing* (Pulse Classic) as Zhang Zhongjing's words. Gao Zhan's *Yangsheng Lun* states: "Wang Shuhe had a quiet nature, loved writing, examined lost texts, collected diverse views, and compiled the *Mai Jing* in ten volumes." Wang Shuhe's preface to the *Mai Jing* also says: "I have now compiled essential theories from Qibo down to Hua Tuo into ten volumes, recording all variations transmitted by Wang, Ruan, Fu, Dai, Wu, Ge, Lu, and Zhang." While the *Shanghan Li* contains many inconsistencies with Zhang Zhongjing's standards and absurd statements, Wang Shuhe was a renowned scholar. Would he truly attribute his own theories to ancient sages and record them in his own published works using such deceitful tactics?

Yin-Yang and Five Elements were favored topics among Han Confucians. The internal organs, meridians, and flow of Qi and Blood are mentioned in the *Records of the Grand Historian* (Shiji) biographies of Bian Que and Cang Gong, and heavily listed in the *Bibliographic Treatise* (Yiwenzhi) of the *Book of Han*. Why would Zhang Zhongjing, living in the late Han, exclude them? Based on the arguments of Wu of Linchuan, we can examine this: The sections from the Six Channels to fatigue recovery, with their elegant and profound language, belong to the ancient classics he utilized. Other parts, which seem pedantic and stylistically weak, are often attributed by modern readers to Wang Shuhe's interpolations. Could it be that these are actually Zhang Zhongjing's own writings? Thus, phrases like "some say," "suspected not to be Zhang Zhongjing's formula," or "originally stated 'etc.'" in the *Shanghan Li* and other texts appear to be recordings by Wang Shuhe. These are clearly Zhang Zhongjing's original texts. The contradictions in meaning and obscure logic are common in ancient books; why doubt them? Fang Youzhi, Yu Chang, and others attempted to restore the original text by deleting and modifying sentences line by line. Unknowingly, they deviated further from the original truth and confused later generations more severely than Wang Shuhe did. Compared to Wang Shuhe, who is more culpable?

Zhang Suichen's *Complete Works of Zhang Zhongjing* includes a "Biographies of Medical Forest" stating: "Wang Shuhe compiled Zhang Zhongjing's formulas and theories into thirty-six volumes, widely circulated." This derives from the *Taiping Yulan* citing Gao Zhan's *Yangsheng Lun*. However, the *Sui Shu·Jingji Zhi* does not list thirty-six volumes. Wang Hu argues: "Zhang Zhongjing wrote the *Shanghan Zabing Lun* in sixteen volumes. How could Wang Shuhe's compilation suddenly add twenty volumes? Thus, the claim of thirty-six volumes is erroneous."

In summary, the *Shanghan Lun* is a book concerning life and death, of great significance. Readers should clear their preconceptions, carefully distinguish Yin/Yang, exterior/interior, deficiency/excess, and cold/heat, and understand the differences between sweating, vomiting, purging, attacking, tonifying, harmonizing, and warming. They must apply themselves diligently so that when facing clinical practice and personal experimentation, there is no hesitation. If there are logical contradictions or difficult phrasing, one should not force interpretations. Generally, practical applications that are clear and explicit, such as "For Taiyang disease (disease of the Taiyang channel) presenting with headache, fever, sweating, and aversion to wind, Guizhi Tang (Cinnamon Twig Decoction) is the primary treatment," are simple and easy to grasp. Scholars should study these accessible aspects carefully, distinguishing true from false and similar from different, thereby grasping the profound principles of life. This constitutes true mastery. Conversely, difficult explanations where scholars expend effort on convoluted theories may amount to scratching an itch from outside the boot. Applying uncertain interpretations to medical practice can endanger lives unpredictably. Therefore, unresolved difficulties should be left as open questions. As the proverb goes: "Clear when reading,茫然 (at a loss) when treating." This is a common flaw among physicians. Scholars should reflect on this rather than obsessing over criticizing ancients.

Furthermore, according to the *Nanyang Prefecture Gazetteer*, in the preface by Zhang Sanyi for the construction of the Temple of Medical Sage Zhang, and Sang Yun's *Record of the Shrine and Tomb of Mr. Zhang Zhongjing*, it is recorded that elders in the southeastern highlands of Nanyang Commandery相传 (pass down the tradition) that this is Mr. Zhang's tomb, existing alongside his former residence. In the early Hongwu period of the Ming Dynasty, Commander Guo Yun toppled the stele, causing the tomb to be buried. Over 260 years later, in the Wuchen year of Chongzhen, Feng Ying'ao, a student from Lanyang, suffered from a critical cold-disease. In a trance, a divine being touched his body, bringing relief to all joints. When asked, the spirit replied: "I am Zhang Zhongjing, Administrator of Changsha and native of Nanyang. There is a shrine about four li east of the city, and a tomb seventy-seven steps behind it. I will seal it above you [the well site]." After recovering, Feng traveled a thousand li to Nanyang to search but failed. He then visited the Temple of the Three Sovereigns, saw an image of Zhang Zhongjing, inscribed a stone tablet in the temple, and departed. Years later, a gardener digging a well unearthed a stone stele inscribed: "Tomb of Zhang Zhongjing, Administrator of Changsha of the Han Dynasty, Medical Sage." Such accounts are absurd and unreliable. Note that in the "Three Anomalies" preface, Zhang Zhongjing's given name is written as Ji (玑), courtesy name Kaoji. In ancient times, Ji and Ji were interchangeable. The *Book of Documents* (Shangshu) mentions "Xuanji Yuheng," and commentaries state: "Ji was originally written as Ji." The *Book of Jin* records Lu Ji's courtesy name as Shiheng, which confirms this usage.