Lǐ Zhīyòng 李之用 — Míng jìnshì from Huánggāng 黃岡 (the native region of 萬全 Wàn Quán). Prefacer of Wàn Quán’s Guǎngsì jìyào (KR3ei074); his preface establishes the work’s theoretical-ethical framework, situating the guǎngsì (heir-producing) topic within Confucian xiàozǐ (filial-son) doctrine alongside the bǎomìng (life-preservation) topic. Not in CBDB.