昔外父章次柯先生尝云∶万事万物，各有其原。儒之道原于孔孟，医之道原于歧黄，歧
黄之《灵》、《素》，乃医书之大原也。汉之张仲景深参《灵》《素》之秘，人称南阳医圣
，所传《伤寒》《金匮》，后世奉为圭臬。晋唐以下，代有传人，着书之多，汗牛充楝，其
上者各得仲景之一体，其下者惑世诬民，离经畔道，犹吾儒之有伪学也。俗士不察，利其浅
近，为衣食奔走之计，贻生人夭札之忧，医学之衰，悉由于此。汝其慎之，（驰）佩之不敢忘
。近得石孝廉《医原》一书，其立论在先识人身内景，脏腑形质，营气卫气，五行生克，百
病提纲，及手足各经阴阳表里之义。次及内伤外感，儿病女科，标本虚实，无不洞悉原委，
深中病机。又次则述及药性，有论无方，脱尽窠臼，视世之拘拘然守成方者，相去爰啻霄壤
，（驰）不敢谓比诸古人之书奚若，若近世之嘉言三书，灵胎六种，可谓如骖之靳矣。嗣又得
吾郡徐明经所着《医学举要》一书，论六经则条分缕析，论时邪杂症则语简旨赅，治法悉合
乎机宜，论方不流于偏僻，其医案数则，精思所到，仿佛古人，虽不逮石氏之精博，而其平
时之精阐《素》、《灵》，推原仲景，已可略见一斑。总之石氏之书其原也，徐氏之书其委
也，两书汇集，由原竟委之谓也，当世高明之士，尚其鉴诸。
光绪十有七年季夏后学华亭张声驰谨序
从前，我的岳父章次柯先生曾说：世间万事万物，各自都有其本源。儒家的道源于孔子和孟子，医学的道源于岐伯和黄帝，岐伯与黄帝的《灵枢》和《素问》，是医学书籍的根本源头。汉代的张仲景深入探究《灵枢》和《素问》的奥秘，被人称为“南阳医圣”，他所传承的《伤寒论》和《金匮要略》，被后世奉为准则。晋代、唐代以后，代代都有传人，著作之多，多得让牛拉车都累出汗，书堆满屋都塞不下。其中水平高的，各得张仲景学术体系的一方面；水平低的，迷惑世人、欺骗百姓，背离经典、违背正道，就像儒家中有伪学一样。世俗之人不加考察，贪图其浅显近便，为了衣食生计而奔走，导致人们遭受早夭的痛苦，医学的衰落，全是因为这个原因。你要谨慎对待，（我）铭记在心不敢忘记。最近得到石姓举人（石寿棠）所著的《医原》一书，其立论在于先认识人体内部景象，包括脏腑形态质地、营气与卫气、五行生克关系、百病提纲，以及手足各经脉阴阳表里的含义。其次涉及内伤和外感疾病、儿科和妇科，对于标本虚实，无不洞察清楚来龙去脉，深刻切中病机关键。再次则论述药物性质，只有理论论述而没有具体方剂，摆脱了陈规俗套，与世上那些拘泥于固守成方的人相比，相差犹如天地之别。（我）不敢说它能否比得上古人的书籍，但如果与近世著名的嘉言三书（喻昌《寓意草》等）、灵胎六种（张璐《张氏医通》等）相比，可以说就像马车上驾车的两匹陪乘之马一样并列（意指地位相当或作为补充）。随后又得到我们郡县徐明经（徐大椿）所著的《医学举要》一书，论述六经辨证则条理清晰、分析细致，论述时邪杂症则语言简练、主旨完备，治疗方法完全合乎时机适宜，论述方剂不流于偏颇怪异，其中的几则医案，精妙思考所达到的境界，仿佛古人一般，虽然不如石氏著作那样精深广博，但他平时对《素问》、《灵枢》的精辟阐发，推究溯源张仲景学说，已经可以略见一斑。总之，石氏的书是它的本源，徐氏的书是它的支流/延伸，两书汇集在一起，就是从本源推究到末流的完整过程，当今高明的士人，应当仔细审视参考。
光绪十七年夏季，后学华亭张声驰恭敬作序。
In the past, my father-in-law, Mr. Zhang Cike, once said: All things in the world have their own origins. The Way of Confucianism originates from Confucius and Mencius; the Way of Medicine originates from Qibo and Huangdi (Yellow Emperor). The *Ling Shu* (Spiritual Pivot) and *Su Wen* (Basic Questions) by Qibo and Huangdi are the great origins of medical texts. Zhang Zhongjing of the Han Dynasty deeply explored the secrets of the *Ling Shu* and *Su Wen*, and was known as the "Medical Sage of Nanyang." His transmitted works, *Shanghan Lun* (Treatise on Cold Damage) and *Jinkui Yaolue* (Essential Prescriptions of the Golden Cabinet), have been held as standards by later generations. From the Jin and Tang dynasties onwards, there have been inheritors in every generation. The number of books written is so vast that it would make oxen sweat from carrying them and fill houses to the rafters. Those at the higher level each grasped one aspect of Zhang Zhongjing's system; those at the lower level confused the world and deceived the people, departing from the classics and abandoning the Dao, just as there are pseudo-learnings in Confucianism. Vulgar scholars do not examine this carefully, seeking profit in its superficiality and nearness, running about for the sake of food and clothing, causing worries about people suffering premature death. The decline of medicine is entirely due to this. You must be cautious, and I shall wear it with gratitude and never forget it. Recently, I obtained a book titled *Yi Yuan* (Medical Origins) by Scholar Shi (Shi Shoutang). Its theoretical stance begins with recognizing the internal landscape of the human body, including the morphology and substance of Zang-Fu organs (viscera), Ying Qi (Nutrient Qi) and Wei Qi (Defensive Qi), the generation and restriction of the Five Elements, the outline of hundreds of diseases, and the meanings of Yin-Yang and exterior-interior relationships of the hand and foot meridians. It then covers internal injuries and external infections, pediatrics, and gynecology, thoroughly understanding the causes and consequences of Biao-Biao (Exterior-Interior) and Xu-Shi (Deficiency-Excess), deeply hitting the pathogenesis. Furthermore, it discusses drug properties, offering theories without specific formulas, breaking away from clichés. Compared to those in the world who rigidly stick to established formulas, the difference is as vast as heaven and earth. I dare not say how it compares to the books of ancient sages, but if compared to the famous "Three Books of Jiayan" (referring to Yu Chang's works) and "Six Works of Lingtai" (referring to Zhang Lu's works) of recent times, it can be said to be like the two horses harnessed alongside the main carriage (implying they are comparable or complementary). Subsequently, I obtained another book titled *Yixue Juyao* (Key Points of Medicine) written by Xu Mingjing (Xu Dacun) of our prefecture. In discussing the Six Meridians, he analyzes items clearly and meticulously; in discussing seasonal pathogens and miscellaneous diseases, his language is concise and his purport comprehensive; his treatment methods fully accord with appropriateness; his discussion of formulas does not deviate into eccentricity. The few medical cases included show profound thought, resembling the ancients. Although not as refined and extensive as Shi's work, his usual brilliant exposition of the *Su Wen* and *Ling Shu*, and his tracing back to Zhang Zhongjing, already allows us to glimpse a part of the whole. In short, Shi's book represents the origin, while Xu's book represents the extension/branch. Collecting both books constitutes going from the origin to the branch. May the eminent scholars of the present age reflect upon this.
Preface respectfully written by Junior Scholar Zhang Shengchi of Huating in the late summer of the 17th year of Guangxu.