丁卯冬仲，秉臣世兄辑录甘仁师医案，问序于余，余再拜受之。今世之所谓名医者，有三术焉。见病势
较重，即多防变推诿之辞，为日后愈则居功，变则诿过之地，此其一也；专选平淡和平之药，动曰为某方所增
损，以博稳当之名，可告无罪于天下，此其二也，和颜悦色，温语婉词，动效奴仆之称，求媚于妇女庸愚之辈，使
其至死不悟，此其三也。三者之外，求见理明决，处方活泼，进而预定病势之吉凶，先言愈期之早暮者，百不
得一焉。乃举世悠悠，孰分泾渭之日，于海上得丁师甘仁，师于黄帝、岐伯、越人、元化之书，既多心得，而
尤致力于仲景古训。尝谓医有二大法门，一为伤寒之六经病，一为金匮之杂病，皆学理之精要，治疗之准则。更
旁及刘、李、朱、张、天士、盂英辈，历代专集，比拟考求，发明其奥。盖不以术豪，而独以积学自高，宜其别病处
方。展指上阳春，而沉寒忽散；泼壶中甘露，而元气顿光。有若洞垣之照，大还之丹，孟渎海滨，咸化为春台
寿域矣。不幸去岁以微疾易箦，大吕黄钟，正音遽寂；茫茫宇宙，大觉焉求。平居又以诊务纷繁，着述鲜少，
所存者仅喉科概要一卷而已。门生故旧嗟叹之余，因倩文孙秉臣世兄逻辑历年医案，以资流传。秉臣世兄
宿承家学，临诊多时，其收集者，自当较同侪富且稽也。虽然，先大父又词公以文学之暇，攻研医籍，名被浦
江东西，召楼奚丈铸翁曾作读内经图赠之，迄今弃养垂十载，乡人士遇疾苦，犹有称道之者，家藏医案盈尺，
余仅辑数十纸刊诸医学杂志，久欲付刊专集，未能偿愿，以视秉臣世兄之孝思，不禁又兴手泽之悲矣。
门弟子上海秦之济伯未甫敬撰
In the mid-winter of the Dingmao year, Senior Bingchen compiled and edited the medical cases of my teacher, Master Ganren, and asked me to write a preface. I respectfully accepted it with two bows.
The so-called "famous doctors" in today's world possess three types of techniques: The first is that upon seeing a severe disease condition, they use many words to predict complications and shift blame, creating a situation where they claim credit if cured but evade responsibility if the condition worsens; this is the first type. The second is to exclusively select mild and peaceful herbs, often claiming modifications of certain formulas to gain a reputation for stability and safety, thereby claiming innocence before the world; this is the second type. The third is to maintain a pleasant expression and gentle words, frequently using subservient titles to flatter women and the vulgar or ignorant, keeping them from realizing their errors until death; this is the third type.
Among those outside these three categories, individuals who possess clear understanding and decisive judgment, prescribe with flexibility, can predict the auspiciousness or inauspiciousness of the disease course in advance, and state the timing of recovery beforehand, are fewer than one in a hundred.
In an era where the world is chaotic and distinctions between right and wrong are blurred, I encountered Master Ding Ganren in Haishang (Shanghai). Master studied the works of Huangdi (Yellow Emperor), Qibo, Yue Ren (Bian Que), and Yuanhua (Hua Tuo), gaining profound insights, and particularly devoted himself to the ancient teachings of Zhang Zhongjing. He once stated that there are two major gateways in medicine: one is the Six Meridian diseases of Shanghan Lun (Treatise on Cold Damage Diseases), and the other is the miscellaneous diseases of Jingui Yaolue (Essential Prescriptions from the Golden Cabinet). Both are the essence of theory and the criteria for treatment. Furthermore, he extensively studied the specialized collections of Liu Wansu, Li Dongyuan, Zhu Danxi, Zhang Congzheng, Ye Tianshi, and Wang Mengying, comparing and investigating them to elucidate their profundities.
He did not boast of his technical skills but elevated himself through accumulated learning. Thus, when distinguishing diseases and prescribing, his fingers moved like the pure music of Yangchun Baixue (Spring Snow), dispersing deep-seated cold suddenly; pouring sweet dew from the pot, vital Qi was instantly restored. His diagnostic ability was like seeing through walls, and his efficacy was like the Great Return Pill, turning the coastal areas of Mengdu into a realm of longevity and happiness akin to Spring Terrace.
Unfortunately, last year Master passed away due to a minor illness. The solemn tones of Dalü and Huangzhong (metaphor for great masters) fell silent abruptly; in this vast universe, where can one find such a great觉 (enlightened one)? Due to the complexity of his clinical duties, he wrote little during his lifetime, leaving only one volume titled Houke Gaiyao (Outline of Throat Diseases). His disciples and old friends, after sighing, commissioned his literary grandson, Senior Bingchen, to organize the medical cases of previous years for dissemination.
Senior Bingchen has inherited family learning since childhood and has had extensive clinical experience. Therefore, his collection is naturally richer and more verified than that of his peers. Nevertheless, my grandfather, Youci Gong, studied medical texts alongside his literary pursuits, gaining fame across both banks of the Pujiang River. Lou Xi Zhang Zhuweng once presented him with a painting titled Reading Neijing Tu (Illustrations for Studying the Inner Canon). Nearly ten years have passed since his passing, yet locals still praise him when suffering from illness. The medical cases stored in our home filled shelves, but I only compiled dozens of pages for publication in medical journals. I longed to publish a dedicated collection but could not fulfill this wish. Compared to Senior Bingchen's filial piety, I cannot help but feel sorrow over the loss of ancestral relics.
Respectfully written by Qin Zhi Ji, courtesy name Bowei, Shanghai, disciple of the school.