难经集注五卷。明王九思等集录吴吕广、唐杨玄操、宋丁德用、虞庶、杨康侯注解者。按晁公武郡斋读书志。载吕
杨注一卷。丁注五卷。虞注五卷。陈振孙书录解题。载丁注二卷。马端临经籍考。引晁氏作吕杨注五卷。盖当时各家别
行。至九思等始掇辑以便观览耳。叶盛绿竹堂书目。载难经集注一册。不着撰人名氏。此则书名偶同。非九思所集。按
王圻续经籍考。载金纪天锡难经集注五卷。盛之所收恐此耳。盛、正统进士。九思、宏治进士。则其非是编也明矣。其
他诸家藏 书目。及乾隆四库全书总目。并未收入。若殷仲春医藏目录。宜裒搜无遗。而亦遗之。盖似失传者。然以余
不涉医家。但知据目录考之耳。因质诸医官多纪廉夫。廉夫云。近代医书。绝无援引。久疑散佚。廉夫于医家。雅称赅
洽。而其言如此。则知其果失传也。夫方伎一家。固有其人。其存其佚。何干我事。然小道可观。至理存焉。则竟非可
弃也。
癸亥花朝天瀑识。
《难经集注》共五卷。由明代王九思等人汇编了吴国吕广、唐代杨玄操、宋代丁德用、虞庶、杨康侯等人的注解而成。据晁公武《郡斋读书志》记载，其中收录吕广、杨玄操的注解为一卷，丁德用的注解为五卷，虞庶的注解为五卷。陈振孙《书录解题》记载，丁德用的注解为二卷。马端临《文献通考·经籍考》引用晁氏的说法，称吕广、杨玄操的注解为五卷。大概是因为当时各家注解单独刊行，直到王九思等人将其搜集整理，以便于阅读浏览。叶盛《绿竹堂书目》中记载有《难经集注》一册，但未注明撰者姓名。此处书名偶然相同，并非王九思所集。据王圻《续经籍考》记载，金代纪天锡著有《难经集注》五卷，叶盛所收藏的可能就是这一部。叶盛是正统年间的进士，王九思是宏治年间的进士，由此可以明确知道叶盛所藏并非此编。其他各家的藏书目录，以及乾隆年间《四库全书总目》，均未收录此书。至于殷仲春的《医藏目录》，本应搜罗无遗，但也遗漏了它。看来这本书似乎已经失传了。然而因为我本人不涉足医学领域，只是依据目录进行考证罢了。于是向医官多纪廉夫请教，廉夫说，近代的医书，完全没有被引用，长久以来一直怀疑已经散佚。多纪廉夫在医学方面，素以知识渊博著称，他的说法如此，那么就可以知道这本书确实已经失传了。方技这一家，固然有其人存在，它的存留或散佚，与我何干？然而小道也有可观之处，其中蕴含着至深的道理，所以终究不是可以抛弃的东西。
癸亥年，花朝天瀑题识。
*Jie Jing Ji Zhu* (Collected Commentaries on the Classic of Difficult Issues) consists of five volumes. It was compiled by Wang Jiusi and others in the Ming Dynasty, gathering the commentaries of Lü Guang from the Wu Kingdom, Yang Xuancuo from the Tang Dynasty, Ding Deyong, Yu Shu, and Yang Kanghou from the Song Dynasty. According to Chao Gongwu’s *Junzhai Dushu Zhi* (Record of Books in the Commandery Study), it records Lü and Yang’s commentary as one volume, Ding’s commentary as five volumes, and Yu’s commentary as five volumes. Chen Zhen-sun’s *Shulu Tijie* (Annotated Record of Books) records Ding’s commentary as two volumes. Ma Duanlin’s *Wenxian Tongkao: Jingji Kao* (Examination of Classics in the Comprehensive Study of Literary Remains), citing Chao’s work, states that Lü and Yang’s commentary is five volumes. This suggests that at that time, each school’s commentary was circulated separately; it was not until Wang Jiusi and others collected them together that they became convenient for reading and viewing. Ye Sheng’s *Luzhu Tang Shumu* (Catalogue of Green Bamboo Hall) lists a single fascicle of *Nan Ji Ji Zhu* (Collected Commentaries on the Classic of Difficult Issues) without specifying the author's name. The title here coincidentally matches but is not the collection compiled by Wang Jiusi. According to Wang Qi’s *Xu Jingji Kao* (Continued Examination of Classics), Ji Tianxi from the Jin Dynasty authored *Nan Ji Ji Zhu* in five volumes; the copy collected by Ye Sheng was likely this one. Ye Sheng was a Jinshi (successful candidate in the imperial examination) during the Zhengtong era, while Wang Jiusi was a Jinshi during the Hongzhi era; thus, it is clear that Ye Sheng’s copy was not this compilation. Other private library catalogs and the *Siku Quanshu Zongmu* (General Catalog of the Complete Library of the Four Treasuries) compiled during the Qianlong reign did not include it. Although Yin Zhongchun’s *Yicang Mulu* (Catalogue of the Medical Treasury) should have been exhaustive in its search, it also omitted this work. It appears that the book had seemingly fallen into obscurity or been lost. However, since I am not versed in medical studies, I could only rely on catalogues for verification. Therefore, I consulted Duoji Lianfu, a medical official. Lianfu stated that modern medical texts are rarely cited or referenced, leading to long-standing suspicions of their dispersal or loss. As Lianfu was renowned for his comprehensive knowledge in medicine, his statement confirms that the text indeed has been lost. Although the school of technical arts (*Fangji*) certainly has its practitioners, whether these texts survive or perish concerns me little. Nevertheless, even minor arts contain observable principles, and profound truths reside within them; therefore, they cannot simply be discarded.
Written by Huachao Tianpu in the Guihai year.