Yī Xué Zhǐ Yào 醫學指要
Pointers to the Essentials of Medical Learning by 蔡貽績 (Cài Yíjī, 字乃庵, fl. Jiāqìng–Dàoguāng, 楚攸 [Yōuxiàn, Húnán], 清)
About the work
Cài Yíjī’s earlier and more general medical handbook, composed in 1812 and printed shortly thereafter with support from the regional intendant Chén Zuǒ 陳佐. The book opens with channel and pulse theory (which the author identifies as the foundation of clinical reasoning), then proceeds through the standard internal-medicine categories (六氣 disorders, 內傷 disorders, zàfēng disorders, women’s medicine, paediatrics). Cài explicitly conceives the Zhǐ yào as a putong introduction (tí gāng qiè lǐng 提綱挈領): a text that gives the principal headings so that a competent practitioner can extend them by analogy (“by this and that, the practitioner finds the source on his right and his left”). The book was the seed-work from which Cài’s later channel-anatomy companion Yī huì yuán yào (KR3eb005) grew.
Prefaces
The jicheng.tw _000.txt retains Cài’s own Yī xué zhǐ yào front-matter; the more elaborate paratexts of the Yī huì yuán yào (Chén Zuǒ’s 1820 zèngxù, Cài’s 1823 self-preface) discuss the composition history of the Zhǐ yào and identify it as the parent of the channel-anatomy companion volume. According to Cài’s own preface, the book was completed in Jiāqìng rénshēn 嘉慶壬申 = 1812 while he was attached to the Dūliáng 都梁 administration; Chén Zuǒ (“觀察顧廬先生”) and provincial-capital colleagues raised the subscription to print it.
Abstract
The Yī xué zhǐ yào is the earlier of Cài Yíjī’s two surviving major medical compositions. Its scope is broader than the channel-by-channel Yī huì yuán yào: a beginner’s curriculum covering pulse, channel, formulary, and the principal disease categories of internal medicine, women’s medicine, and paediatrics. The pulse section drives on Wáng Shūhé’s KR3eb011 Mài jīng, Lǐ Shízhēn’s KR3eb014 Bīnhú mài xué, and the Cuī Jiāyàn 紫虛 mnemonic. The intended readership is the literatus turning to medicine in middle age, hence the studied avoidance of advanced or polemical material; Cài’s own preface frames this as compliance with the Lúnyǔ maxim xià xué shàng dá 下學上達 (learn the elementary in order to reach the higher). For biographical background and dating logic see KR3eb005.
Translations and research
- No substantial secondary literature located. Modern Chinese reprints have appeared in the Zhōng yī gǔ jí zhěn běn cóng kān 中醫古籍珍本叢刊 series.
Links
- Companion work: KR3eb005 Yī huì yuán yào.
- 醫學指要 jicheng.tw
- Kanseki DB