Yīxué yuánliú lùn 醫學源流論
Essays on the Sources and Streams of Medical Learning by 徐大椿 Xú Dàchūn (zì Língtāi 靈胎, hào Huíxī lǎorén 迴溪老人, 1693–1771).
About the work
A two-juǎn (上 / 下) collection of ninety-nine medical-theoretical essays — Xú Dàchūn’s most widely-cited methodological work and the foundational text of mid-Qīng medical philosophical reflection. The work treats the doctrinal history of Chinese medicine in the yuánliú “sources-and-streams” mode: each essay (typically two or three pages) takes up a specific topic — the relationship of medicine to classical learning, the proper balance of zhèngqì and xiéqì in clinical reasoning, the appropriate use of cooling-versus-warming prescriptions, the proper extent and limits of clinical empiricism, the cautious application of ginseng and the dangers of routine tonification, the historical-doctrinal limitations of the LiúZhāngLǐZhū Four Masters synthesis, and a long polemic against the late-Míng / early-Qīng vogue for warming-tonifying prescriptions associated with 張介賓 Zhāng Jièbīn — and adjudicates between competing positions with the characteristic Xú combination of kǎozhèng philological rigour and clinical-empirical scepticism. The work’s sustained engagement with the HànTáng Jīngfāng tradition (張仲景 Zhāng Zhòngjǐng, 孫思邈 Sūn Sīmiǎo, 王燾 Wáng Tāo) as the proper foundation of Chinese medicine, and its corresponding criticism of the JīnYuán Four Masters as having reduced classical complexity to one-dimensional doctrinal partisanship, set the doctrinal frame for the entire mid-to-late Qīng kǎojù yīxué (evidential-research-medicine) movement of which Xú is the founder.
Prefaces
The jicheng.tw text opens with Xú’s self-preface, signed Qiánlóng dīngchǒu qiū qī yuè Dòngxī Xú Dàchūn shū yú Wúshān zhī Bànsōng shūwū 乾隆丁丑秋七月洞溪徐大椿書於吳山之半松書屋 — i.e. seventh month of Qiánlóng 22 = autumn 1757, written at the Half-Pine Studio on Mount Wú. The preface frames the work autobiographically: Xú’s youthful turn from classical scholarship to medicine after multiple bereavements within his family, his self-deprecating description of medicine as “a small Way” (xiǎo dào 小道) that is nonetheless “of grave responsibility” (zhòngrèn 重任), and his complaint that since the Táng and Sòng no major rúxué scholar has invested his learning in medicine, with the result that the discipline has degenerated into a “lower trade” practised by intellectual mediocrities.
Abstract
Xú Dàchūn (Língtāi, 1693–1771), the great Qīng-dynasty polymath of Wújiāng 吳江 (Jiāngsū) — physician, philologist, musicologist, classical and Daoist commentator (see person note 徐大椿) — composed the Yīxué yuánliú lùn at the height of his mature career, in the seventh month of Qiánlóng 22 (1757), at age 64. The work was printed shortly after composition and circulated widely from the late Qiánlóng onward; the jicheng.tw text preserves the dated 1757 self-preface and the standard 99-essay arrangement. The composition window 1757–1757 reflects the precisely-dated self-preface and accepts the single year as the work’s composition date.
Doctrinal significance: the Yuánliú lùn is the single most important Qīng-dynasty work in establishing the kǎojù yīxué (evidential-research-medicine) movement that would dominate the second half of the dynasty. Xú’s two principal moves — (a) treating the HànTáng Jīngfāng (classical-formula) corpus as the authoritative foundation, and (b) treating the JīnYuán Four Masters as having degraded classical complexity into doctrinal partisanship — anchored the late-Qīng polemic against the “LǐZhū bì” (李杲 Lǐ Gǎo–朱震亨 Zhū Zhènhēng disease) and shaped the corresponding revival of careful philological work on Zhāng Zhòngjǐng. The Yuánliú lùn is the necessary point-of-entry for any sustained study of mid-Qīng Chinese medical thought, and its compact essay form makes it one of the more accessible classical texts in the canon.
CBDB records Xú Dàchūn at 61225 with lifedates 1693–1771; the lifedates are followed here and in the person note. The Wúshān 吳山 setting of the self-preface is the eponymous hill of Hángzhōu, where Xú was then resident; “Bànsōng shūwū” 半松書屋 (Half-Pine Studio) is Xú’s own studio name.
Translations and research
The Yīxué yuánliú lùn has been translated into English (in selection) in Paul U. Unschuld’s source-book of Chinese medical history: see Paul U. Unschuld, Forgotten Traditions of Ancient Chinese Medicine: A Chinese View from the Eighteenth Century (Brookline, MA: Paradigm, 1990; reissued Cambridge: Cambridge University Press, 1998) — a translation of substantial sections of Xú Dàchūn’s Yīxué yuánliú lùn with extensive interpretive apparatus. This is the principal European-language scholarly engagement with the text. See further Bridie J. Andrews, The Making of Modern Chinese Medicine, 1850–1960 (UBC Press, 2014), on Xú’s posthumous reception in the late-Qīng/Republican-era medical-reform movement; Volker Scheid, Currents of Tradition in Chinese Medicine 1626–2006 (Eastland Press, 2007).
Other points of interest
The Yuánliú lùn is conventionally read in tandem with Xú’s Lántái guǐfàn 蘭台軌範 (1764) and Shénnóng běncǎo jīng bǎizhǒng lù 神農本草經百種錄 (1736) as the three foundational works of Xú’s kǎojù yīxué programme.
Links
- Xú Dàchūn (zh)
- Unschuld’s translation: Forgotten Traditions of Ancient Chinese Medicine (Paradigm, 1990).
- Kanseki DB
- 醫學源流論 (jicheng.tw)