医之为道大矣!医之为任重矣！世之言医者甚伙，具曰予圣，及经治病，则动罹颠复，因是而叹明通
者之难其人也。吾友松园顾君，系出巨族，颖异天生，年方午勺，铮铮黉序，特以屡试数奇，未逢伯
乐之顾，乃以明经就选。其言曰∶“大丈夫不能致君行道，被泽于苍生，亦当济世立言，有功于造化。
”遂择歧黄之术而为之肆力焉。寒暑靡间，寝食俱忘，不啻有人督导而为之者，二十年来如一日。夫
以是道高矣！名著矣！彼虽不欲以斯术自见，然友之知其神而称其方者，户外之屦常满。其临症投剂，
俱与俗下相悬殊，医弗能解，辄相谤之，然用卒奇中，亦未尝不心折之，遇险怪症必拱手而请质焉，
松园往往起沉 而生之，辄抚掌自快。曾供职御医院，旋以亲老归养，闭户着书，手辑医镜一编。
其于“灵素摘要”、“内景详解”、“脉法删繁”则简而明；“本草必用”、“格言汇纂”则要而精；
症方发明，则博而约，真业医之秘本，济世之宝鉴，医书中之罕见者也。行将达之彤庭，播之中外，
跻斯民于寿域，传奕世以无穷，又安知圣天子不召对宣室，寄之重任，以展君之抱负也！勖其拭目以观之矣。
翰林院检讨充修纂明史官年家眷弟冯勖拜撰
古来医书，充栋汗牛，难以悉数。如近代王宇泰之《证治准绳》，薛立斋之十六种书，则学人
苦其太繁，而有望洋之叹。李士材之必读，赵养葵之《医贯》等编，又嫌其太略，而有未备之憾。
求其简而明，约而该，切于时用而必效者殆罕觏焉！松园顾君情深利济，究心医术，积学有年，纂
述医镜一编，书成请余为序。余一为披阅，见其所集本草、内经、脉诀、症方诸卷，删繁去复，独
存精要，加之注释，义极详明。真令医者续之，顿开胸中茅塞，病家见之，亦恍然致疾根原，应寒、
应热、应补、应攻，不为庸俗所误。所谓简而明，约而该，切于时用而必效者，是书足以当之矣。余
甚欢喜赞叹，而弁数言于首。
赐进土及第资政大夫
予 告
经筵讲官内阁学士兼礼部侍郎加二级年家眷侍生徐秉义拜撰
医学的道理真是宏大啊！医学的责任真是重大啊！世上谈论医术的人很多，都自称自己圣明，但等到真正治病时，却往往遭遇失败和挫折，因此人们感叹那些明智通达的医生实在难得。我的朋友松园顾先生，出身于大家族，天赋聪颖，年纪轻轻就在学校中表现杰出，只是由于多次科举考试运气不佳，没有遇到赏识他的伯乐，于是凭借明经的身份被选拔任用。他说：“大丈夫如果不能辅佐君主推行大道，恩泽百姓，也应当济世救人、著书立说，对天地造化有所贡献。”于是选择岐黄之术（中医）并致力于此。无论寒暑从不间断，废寝忘食，好像有人督促他一样，二十年来始终如一。这门道术高深且名声显赫，虽然他不想以此术自我炫耀，但朋友们都知道他医术神奇并称颂他的方剂，登门求医者的鞋子常常堆满门口。他临症用药，都与世俗之人大不相同，庸医不能理解，就互相诽谤他，然而使用他的药后往往出奇制胜，他们心里也不得不佩服。遇到危险怪异的病症，必定拱手请教，松园先生往往能起死回生，每次都拍手称快。他曾供职于御医院，不久因父母年老回家奉养，闭门著书，亲手编纂了《医镜》一书。其中关于“灵素摘要”、“内景详解”、“脉法删繁”的内容简明扼要；“本草必用”、“格言汇纂”等内容精要而精准；对于症状与方剂的阐发，则广博而简约，这确实是学医的秘密经典，济世救人的宝贵鉴戒，是医书中罕见的佳作。这本书将送达朝廷，传播到国内外，使百姓进入长寿的境界，流传千秋万代，又怎知圣明的天子不会在宣室召见他，托付重任，以施展他的抱负呢？勉励他拭目以待吧。翰林院检讨兼修纂明史官、年家眷弟冯勖敬撰。
自古以来的医书，堆积如山，汗牛充栋，难以全部列举。如近代王宇泰的《证治准绳》，薛立斋的十六种著作，学者们苦于其过于繁杂，而有望洋兴叹之感。李士材的《必读》，赵养葵的《医贯》等编著，又嫌其过于简略，而有不完备的遗憾。想要找到那种简明扼要、概括全面、切合时宜且必定有效的医书，几乎很难见到！松园顾先生情怀深厚，以利济世人为志，潜心研究医术，积累学问多年，编纂了《医镜》一书，书成后请我作序。我一旦翻阅，见他所汇集的本草、内经、脉诀、症方各卷，删去繁杂重复的内容，独存精要之处，加上注释，义理极其详细明了。真让医者读完后，顿时开阔胸中的迷雾，病人看到后，也能恍然大悟致病的原因，知道应该用寒、热、补、攻哪种治法，不被庸俗之辈误导。所谓简明扼要、概括全面、切合时宜且必定有效，这本书足以担当得起。我非常欢喜赞叹，因此在书首写上几句话。赐进士及第资政大夫、予告经筵讲官内阁学士兼礼部侍郎加二级、年家眷侍生徐秉义敬撰。
The Way of Medicine is truly profound! The responsibility of Medicine is truly heavy! There are many in the world who speak of medicine, all claiming to be sage-like; yet when it comes to treating diseases, they often encounter failure and reversal. Thus, people sigh at how difficult it is to find a person who is wise and thoroughly knowledgeable. My friend, Mr. Songyuan Gu, came from a prominent family, was naturally gifted and intelligent. In his youth, he excelled in the academic institutions (Hongxu), but due to repeated misfortunes in the imperial examinations, failing to meet a patron like Bo Le, he entered official selection through the Mingjing (Ming Classic) degree. He said, "A great man, if he cannot assist the ruler to implement the Dao and bestow grace upon the common people, should still save the world and establish words (writings), contributing to the creation." Therefore, he chose the Art of Qi and Huang (Traditional Chinese Medicine) and exerted himself in it. Uninterrupted by cold or heat, forgetting sleep and food, as if supervised by someone, he remained consistent for twenty years. This Way is lofty and famous! Although he did not wish to display this skill for self-promotion, his friends knew his miraculous skills and praised his prescriptions, so that the shoes outside his door were often full (indicating many visitors). His clinical diagnosis and prescription differed significantly from the vulgar practices. When physicians could not understand, they slandered each other; however, when the results were surprisingly effective, they could not help but admire him inwardly. Encountering dangerous and strange syndromes, they would bow their hands and ask for guidance. Mr. Songyuan often revived the critically ill and brought them back to life, clapping his hands in joy each time. He once served in the Imperial Medical Academy, but soon returned home to care for his aging parents. Closing his door to write books, he manually compiled a volume titled *Yi Jing* (Medical Mirror). Regarding "Ling Su Yao Miao" (Excerpts from Ling Shu and Su Wen), "Nei Jing Xiang Jie" (Detailed Explanation of Internal Structures), and "Mai Fa Shan Fan" (Simplified Pulse Methods), the content is concise and clear; regarding "Ben Cao Bi Yong" (Essential Materia Medica) and "Ge Yan Hui Zuan" (Compilation of Maxims), it is essential and refined; regarding the elucidation of syndromes and formulas, it is extensive yet concise. It is truly a secret classic for medical study and a precious mirror for saving the world, rare among medical texts. It will reach the vermilion court (imperial court) and spread domestically and internationally, elevating the people to an age of longevity, and transmitting endlessly through generations. Who knows if the Holy Emperor will not summon him to Xuanshi Hall, entrust him with heavy responsibilities, and allow him to unfold his ambitions? I encourage him to wait with bated breath. Written by Feng Xu, Hanlin Academy Reviewer and Compiler of the History of Ming, Junior Colleague of the Same Year.
Since ancient times, medical books have filled houses and exhausted oxen (piled high), making it impossible to list them all. For example, Wang Yutai's *Zheng Zhi Zhun Sheng* (Standard Guidelines for Diagnosis and Treatment) in recent times, and the sixteen works of Xue Lizhai, cause scholars to complain about their excessive complexity, leading to a sense of being overwhelmed like looking at the ocean. Li Shicai's *Bi Du* (Must Read) and Zhao Yangkui's *Yi Guan* (Medical Canon), among others, are considered too brief, leaving regrets of incompleteness. To find a work that is concise and clear, comprehensive yet simple, practical for current use, and invariably effective is extremely rare! Mr. Songyuan Gu, with deep compassion for benefiting others, devoted himself to medical arts, accumulated learning for many years, and compiled the *Yi Jing* (Medical Mirror). Upon completion, he asked me to write a preface. Once I opened and read it, I saw that the volumes on Materia Medica, *Nei Jing* (Inner Canon), Pulse Formulas, and Syndromes/Formulas he collected had deleted redundancy and retained only the essence, supplemented with annotations, making the principles extremely detailed and clear. Truly, once doctors read it, the fog in their minds would instantly clear; patients seeing it would also suddenly understand the root causes of their diseases, knowing whether to apply Cold, Heat, Tonification, or Purging methods, avoiding errors by mediocre practitioners. So-called concise and clear, comprehensive yet simple, practical for current use and invariably effective—this book is sufficient to deserve these descriptions. I am greatly delighted and praise it, adding a few words at the beginning. Xu Bingyi, Jinshi Graduate, Zizheng Daifu (Grand Master of Civil Administration), Retired Jingyan Jiangguan (Lecturer for the Emperor), Grand Secretary Academician concurrently Vice Minister of Rites, with two additional ranks, Senior Colleague of the Same Year, respectfully wrote.