Zhāng Shìchún 章世純 (zì Dàlì 大力, 1575–1644), of Línchuān 臨川 (modern Jiāngxī), was a late-Míng scholar and bāgǔwén essayist. He passed the jǔrén in the xīnyǒu year of the Tiānqǐ era (1621) and rose through provincial-level office to zhīfǔ of Liǔzhōu 柳州府 (Guǎngxī). With Ài Nányīng 艾南英, Luó Wànzǎo 羅萬藻, and Chén Jìtài 陳際泰 he was counted one of the Línchuān sìjiā 臨川四家, a quartet famous for their zhìyì 制義 (eight-legged exam-essay) compositions. His extant Liúshū 留書 collection groups together his Sìshū commentary (six juàn; catalogued separately by the Sìkù editors as KR1h0052) with one juàn of philosophical nèijí and one juàn of miscellaneous sànjí. The Sìkù editors praise his “sharp working-out of thought” (yùnsī yóu ruì 運思尤鋭) — meaning he reads beyond the surface phrasing without falling into late-Yáng-míng liángzhī enthusiasm. He died in 1644 with the fall of the Míng. CBDB 88960 records his birth-year as 1575; his death-year is fixed by the dynastic transition.