The Classic of Difficult Issues (Nanjing) is a foundational Chinese medical text in dialogue form. This work is a commentary on it by the Japanese Edo-period scholar-physician Teng Manqing (common name Junchang, style name Zhushui), composed in 1748 and first printed in the tenth year of the Horeki era (1760). Teng devoted thirty years to the study of the Yellow Emperor and Qi Bo tradition. He held that the received Nanjing was a patchwork of broken bamboo slips and scattered records, no longer the original of Bian Que, and that later commentators, following one another, had made many discoveries yet often produced fragmented and disjointed explanations that failed to match the intent of the ancient sages. He therefore investigated the sequence in which the strips had been joined, clarified the causes of each question and answer, and completed this book with the aim of illuminating the ancient meaning. The work is in two juan: the upper juan covers difficulties 1 to 30, the lower juan difficulties 31 to 81. The order of the eighty-one difficulties differs from other editions, and the wording and sequence of sentences were adjusted accordingly so that question and answer follow one another coherently. The commentary is based on the Huangdi Neijing, integrates the views of physicians of successive ages, and adds the author's own opinions, often with new insights; for example, in discussing the causes of the "five accumulations" in difficulty 56, he opposes mechanical correspondence with the days of onset and emphasizes that the fundamental meaning of contraction and transmission of disease is summed up as "deficiency of the vital qi inviting pathogenic factors." Throughout the book, notes are interlined between the canonical text in black and white characters: the white characters continue the flow of the text and smooth the sense, while the black characters directly explain medical theory, so that the reader grasps everything at a glance. The work is regarded as an important achievement of the Edo textual-scholarship school of Japanese medicine and has reference value for Nanjing studies. Extant editions include the original Horeki Japanese printing, the 1930 Shanghai Zhongyi Shuju letterpress edition, the 1936 World Book Company edition in the Collectanea of Rare Medical Books, and the 1985 reprint by Shanghai Scientific and Technical Publishers.
读《难经》注本，常见的困惑是：注家层层相因，越注越繁，反而离经文原意越远。滕万卿这部《难经古义》走的正是相反的路子——先把篇章次序与问答脉络重新理顺，再落到字句上求解，力求让“难”与“答”重新咬合起来。 此书有三点值得留意。第一是编次上的改动：八十一难的顺序与通行本不同，语句次序也有调整，读者若与滑寿《难经本义》等书对读，能清楚看到日本考据学派处理经典的不同思路。第二是注释体例：白字弥缝文意、黑字直释医理，黑白夹注穿插经文中，读起来层次分明，不必频繁翻检注文。第三是敢于下判断，如论“五积”不以发病时日为拘，而归本于正虚邪凑，见识颇为通透。 此本收录于《珍本医书集成》医经类，篇幅不大（不足百页），却是了解日本汉方医经研究不可绕过的一种。对于已经读过《难经》白文、想看看另一种注法的人，它更像一次视角的调换。
Shanghai Scientific & Technical Publishers is a publisher known for professional books in the natural sciences, engineering technology, medicine and health, and agricultural technology. Its catalogue of 759 titles covers popular science, examinations, medicine, agriculture and forestry, and social culture. Representative books include several editions of The Feynman Lectures on Physics by Richard Feynman, Robert Leighton and Matthew Sands; the first and second volumes of Morris Kline's Mathematical Thought from Ancient to Modern Times; and the fourth edition of Molecular Pharmacognosy by Huang Luqi. Other representative authors include Feynman, Wei Xian and Zhang Zhibin. The publisher has developed distinctive strengths in classic translated works in physics and mathematics as well as in medical and agricultural professional titles, while also publishing popular science, textbooks and teaching materials, and journals. Its author resources draw on internationally renowned scientists and domestic specialists.
《难经古义》是谁写的？是中国人吗？
作者是日本江户时期的儒医滕万卿，通称俊丈，号筑水。他属于日本医学考据学派，注重以小学方法整理医籍，撰注此书于1748年，1760年初刊。
这本书和《难经本义》有什么区别？
《难经本义》是元代滑寿的注本，影响最广；《难经古义》则出自日本学者之手，重新调整了八十一难的编次与语句顺序，注文以《内经》为本而多有新见，两者可对读。
“黑白字夹注”是什么意思？
书中注释直接夹在经文之间，白字用于弥缝正文语路、使辞意流畅，黑字则直接解释医理，形成两层注释，读者可一目了然。
本书收录在哪个丛书中？
1936年世界书局《珍本医书集成》将其收入医经类（第一册），1985年上海科学技术出版社有重刊本；此外尚有日本宝历原刻本和1930年上海中医书局铅印本。
这本书适合自学中医的人读吗？
更适合已有《难经》基础的读者。书中大量涉及经文次序调整与注疏辨析，初学者直接入手容易失去参照，建议先读白文或通行注本再回来对读。
