一集首附万金一统述，悉采诸《内经》要旨前贤确论，为初学启蒙。医家切要者，如欲探本求源，当另考诸全书。
一药性层见叠出，非病于繁，即涉于泛，余故删其繁芜，撮其精华，缀成一歌，使人一见寒热温凉治疗炮制之法，犁然毕见。某病以某药为主，使临病用药，知有主佐缓急多寡之殊。
一释形体并人面背手足之图，及五脏六腑形状，此皆不可不知。
一十二经脉歌所载，某经络出于某处，止于某处，某经络受伤所生为某病，所治宜某药，或温或凉或补或泻及报使引经之药，宜忌之物，悉注于下。此可以知受病之源。
一各门类病前附于脉诀，如某病当得某脉，某病宜某脉，某病忌某脉，使得脉知病，生死洞然。
一方论根于《素问》、《灵枢》、仓越以下及刘、张、朱、李，并取近代儒医诸书可法者后，得海内名家秘方，并未入选，其间所附己意，亦出余素所经验者。
凡病有虚实寒热不同，古人虽有分辨，惜皆总论。余于每一门每一证，各立数条，某一条为某病，随以某方治之，使对证投剂，了然无疑矣。
一灸法余取素所经验者，附于方末，以便采用。其未试者姑已之。
一补遗方乃为各病或有缺略者，或有续得秘方不忍弃者，用附于末，以备采用。
一医案附于各病之末，盖为前病发之，有所未尽者，悉系余素日经验，间有用古人得效者亦录之，其愚父子历年医案，亦欲刊布，未逮，姑俟后日。
一云林暇笔，乃余闲谈世病，用录于此，以发后之君子一笑耳。
一龚氏家训，乃庭训吾子弟者，附录于后，辞因谫陋，不足取法于人，第其中多礼义立身之要，然于人道未必无小补也。
一是辑门分类析，简易详明，诚初学指南。首之以脉诀，继之以病论，次之以治法，又次以方药，即未谙医者，一展卷则脉病治方灼然于目，执是可以对证投剂矣。此愚之管见，非敢以欺当世，特不任济人之心耳，高明其亮诸。
第一，书首附有《万金一统述》，完全采纳了《黄帝内经》的要旨和前代贤人的确切论述，作为初学者的启蒙读物。医家如果想要探求本源、追溯源头，应当另外参考全书的其他内容。
第二，药物性味功效的内容往往层层出现、重叠繁杂，不是过于繁琐就是过于宽泛，所以我删去了其中的繁冗芜杂部分，提炼出精华，编成一首歌诀，使人一眼就能看清寒热温凉的治疗原则以及炮制方法，条理清晰，一览无余。某种疾病以某种药物为主药，使得医生在临证用药时，知道有主药与辅佐药、缓急、多少等方面的区别。
第三，解释了人体形体以及人面、背部、手足的图谱，还有五脏六腑的形状，这些知识都是不可不知道的。
第四，《十二经脉歌》中记载了某条经络起源于何处，终止于何处，某条经络受伤后会产生什么疾病，适宜用什么药物治疗，或者用温法、凉法、补法、泻法，以及引经报使的药物和宜忌的食物，都详细注释在下面。这样可以了解致病之源。
第五，各个门类疾病之前附有脉诀，如某种疾病应当出现什么样的脉象，某种疾病适宜什么样的脉象，某种疾病忌讳什么样的脉象，从而能够通过脉象知晓病情，对生死预后了然于心。
第六，方论源于《素问》、《灵枢》，以及仓公（淳于意）、扁鹊（越人）以下，以及刘（河间）、张（仲景）、朱（丹溪）、李（东垣）等医家的著作，并选取近代儒医书中值得效法的部分，后来获得了海内名家的秘方，但并未全部入选，其中附带的个人见解，也都是我平日所验证有效的经验。
凡是疾病都有虚实寒热的不同，古人虽然有所分辨，可惜都只是总体论述。我在每一个门类、每一种证候下，分别设立若干条目，哪一条对应哪种疾病，随即用哪种方剂治疗，使得能够对症投药，清楚明白，没有疑惑。
第七，灸法我选取自己平日所验证有效的，附在方剂之后，以便采用。那些未经过尝试的暂时搁置不用。
第八，补遗方是为了补充各病种中可能存在的缺漏，或者有后续获得的秘方不忍心舍弃的，便附在书末，以备采用。
第九，医案附在各病种的末尾，是因为前面的病症论述有所未尽之处，全部是我平日的临床经验，偶尔有用古人方法取得疗效的也记录下来。我父亲和我的历年医案，也想刊印出版，但未能实现，暂且留待日后。
第十，《云林暇笔》是我闲谈世间疾病的随笔，记录在此，仅供后来的君子博之一笑。
第十一，《龚氏家训》是庭训教导我的子弟的内容，附录在后面，言辞因为浅陋，不足以被人效法，但其中多有立身处世的礼义要点，对于人道或许也有微小的帮助。
第十二，本书编辑门类分类解析，简易详尽明确，确实是初学者的指南。开头是脉诀，接着是病论，然后是治法，再后面是方药，即使是不懂医学的人，一打开书卷，脉象、疾病、治法、方药就清晰地呈现在眼前，掌握了这些就可以对症投药了。这是我个人的浅见，不敢欺骗世人，只是不忍心辜负救人的心意罢了，高明之士请明察。
First, the book begins with an appendix titled "Wanjin Yitong Shu" (Universal Golden Unity Exposition), which fully adopts the essential principles of the *Huangdi Neijing* (Yellow Emperor's Inner Canon) and the definitive discussions of former sages, serving as an introductory guide for beginners. For medical practitioners who wish to explore the root causes and trace the origins, it is recommended to consult the complete work separately.
Second, descriptions of drug properties often appear in layers and overlap; they are either too verbose or too general. Therefore, I have deleted the superfluous and redundant parts, extracted the essence, and compiled them into a song/jingle. This allows one to clearly see at a glance the treatment methods for cold, heat, warmth, and coolness, as well as processing techniques, making everything distinct and comprehensible. It indicates which herb serves as the principal agent for a specific disease, enabling clinicians to understand the distinctions between principal and assistant herbs, urgency, and dosage variations when prescribing.
Third, this section explains diagrams of the human body form, including the face, back, hands, and feet, as well as the shapes of the Zang-Fu organs (Viscera). These are knowledge points that must not be ignored.
Fourth, the "Song of the Twelve Meridians" records where each meridian originates and terminates, what diseases arise from injuries to specific meridians, and which drugs are suitable for treatment. It details whether to use warming, cooling, tonifying, or reducing methods, along with guiding drugs (Drugs that Guide Action to Specific Meridians) and dietary contraindications, all annotated below. This helps identify the source of the pathology.
Fifth, preceding each category of diseases is a pulse diagnosis rhyme. It specifies which pulse pattern corresponds to which disease, which pulse is appropriate, and which should be avoided. This enables the practitioner to diagnose the condition through pulse taking and clearly discern matters of life and death.
Sixth, the theoretical discussions on formulas are rooted in the *Suwen* (Basic Questions) and *Lingshu* (Spiritual Pivot), as well as the works of Cang Gong (Chunyu Yi), Bian Que (Yue Ren), and later masters such as Liu Wansu, Zhang Zhongjing, Zhu Danxi, and Li Dongyuan. It also incorporates valuable insights from contemporary Confucian physicians. Later, secret prescriptions from renowned experts across the country were obtained but not all were included. The personal comments added herein are based on my own verified clinical experience.
Diseases vary in deficiency, excess, cold, and heat. Although ancient texts provided distinctions, they were largely general treatises. In this work, for each category and syndrome, I have established several specific entries. Each entry identifies a specific disease and prescribes a corresponding formula, ensuring that treatments are accurately matched to symptoms without ambiguity.
Seventh, moxibustion techniques selected from my personal experience are appended after the formulas for easy reference. Methods that have not been tested are temporarily omitted.
Eighth, the "Supplementary Prescriptions" section addresses omissions in previous categories or includes newly acquired secret prescriptions that I could not bear to discard. These are appended at the end for potential use.
Ninth, clinical cases are appended at the end of each disease category to elaborate on points not fully covered in the preceding text. These records consist primarily of my daily clinical experiences. Occasionally, effective cases using ancient methods are also recorded. My father’s and my own annual clinical cases are intended for future publication but could not be completed at this time, so they are reserved for later.
Tenth, "Yunlin Xiabi" (Leisure Notes from Yunlin) consists of casual remarks on common ailments, recorded here merely to elicit a smile from future scholars.
Eleventh, the "Gong Family Instructions" contain family teachings for my descendants. They are appended here. Although the language is humble and may not serve as a model for others, it contains essential principles of propriety and moral conduct for establishing oneself in society, offering perhaps minor benefits to human relations.
Twelfth, the compilation is categorized and analyzed for simplicity, detail, and clarity, serving as a genuine guide for beginners. It begins with pulse diagnosis rhymes, followed by disease theories, then treatment methods, and finally formulas and herbs. Even those unfamiliar with medicine can clearly perceive the relationships between pulses, diseases, treatments, and formulas upon opening the book, allowing them to prescribe appropriately based on these guidelines. This is my humble opinion; I dare not deceive the world, but rather act out of an unwillingness to abandon the mission of saving lives. I hope learned individuals will understand this intent.