陈先生（名远公）真是一位奇特非凡的人士。他曾经撰写了《石室秘录》以及多种本草书籍并在世间流传，我私下仰慕敬佩他将近二十多年了。有一天，我与成君而行交谈，因此详尽了解了先生丰富的著述，因为成君是远公的外甥，所以对他了解得最为详细。先生的著作总名为《洞垣全书》，其中最有益于世人的，莫过于《辨证录》。我于是坚决请求并得以拥有此书。
这部书辨析疾病体质的异同，论证药味的攻邪与补益作用，依据五行生克理论，斟酌情理，清晰明了如同指掌一般，即使不擅长养生导引的人，读了它也能知道如何行事，不会有多少迷惑，这真是有益于世人的著作。我因此努力将其刻印出版，想要将它公开于天下，不仅让黄帝、岐伯以来的医家将其视为渡河的桥梁（入门指引），也能使天下后世之人都有所辨证参考，从而使患病者痊愈、危重者平安，大家都和乐安康地进入仁爱与长寿的境界，这正是我平素的志愿罢了。
鄞县楼庆昌 恭敬作跋
Mr. Chen (courtesy name Yuan Gong) was truly a remarkable individual. He had previously authored *Shishi Milu* (Secrets of the Stone Chamber) and various books on Materia Medica, which were circulated in the world. I had privately admired and revered him for nearly twenty years. One day, while conversing with Mr. Cheng Xingxing, I learned in detail about the先生's abundant literary works, because Mr. Cheng is Mr. Yuan Gong's nephew, and thus knew him most intimately. His collected works are collectively titled *Dongyuan Quanshu* (Complete Works of the Inner Sanctum), among which none is more beneficial to humanity than *Bianzheng Lu* (Record of Syndrome Differentiation). I therefore earnestly requested it and succeeded in obtaining this book.
This compilation differentiates the similarities and differences in disease constitutions, and evaluates the attacking and tonifying properties of medicinal flavors. It applies the generation and restriction cycles of the Five Elements (Wu Xing), balancing emotional and rational considerations, making it as clear as pointing at one's palm. Even those not skilled in health preservation and guidance exercises (Daoyang), upon reading it, can know how to proceed without much confusion; this is indeed beneficial to humanity. Therefore, I exerted effort to have it carved onto printing blocks, intending to make it public throughout the land. Not only will physicians following the traditions of Xuanyuan (Yellow Emperor) and Qibo see it as a bridge to mastery, but people of all generations will also be able to engage in syndrome differentiation. Consequently, the sick shall recover, the critical shall become safe, and everyone shall live in harmony, advancing together into the realm of benevolence and longevity. This has always been my sincere aspiration.
Lou Qingchang of Yinxian respectfully wrote this postscript.