Late-Yuán / early-Míng northern-China literatus. Given name Yánxīng 延興; he used his style-name Jìběn in life. Sobriquet Yīshān 一山 (“One Mountain”). A man of Dōngān 東安 (in modern Hébĕi), formally registered at Běipíng. He passed the Zhìzhèng dīngyǒu (1357) jìnshì in the third bracket (王宗嗣榜第三甲) and was appointed Tàicháng fènglǐ concurrent with Hànlín jiǎntǎo. Father, Lǐ Yànwén 李彥聞 / zì Shìzhān 仕贍, had been Hànlín xuéshì chéngzhǐ Chǔguógōng — i.e. an elite Yuán hànlín official. After the mid-Yuán crisis Jìběn withdrew from office. He survived into the Hóngwǔ era (his dǎoyǔ wén for Xióngxiàn dates to Hóngwǔ 27 = 1394, fixing his life as late-Yuán to early-Míng). His verse and prose collection Yīshān wénjí 一山文集 (KR4d0559) is his only surviving work; the Yǒnglè preface by his student Lǐ Mǐn 李敏 records that the surviving 200+ pieces are only a fragment of what he wrote, with the bulk lost in the warfare of the late Yuán.
Jìběn taught successfully in north China after the dynastic fall: his students included Lǐ Mǐn 李敏 (the yuánxù writer). The collection was compiled by his sons Lǐ Fāngshǔ 方曙 and Lǐ Fāngxù 方煦, then re-edited by his grandson Lǐ Shēn 李伸 (Róngchéng jiàoyù), with a Jǐngtài guǐyǒu (1453) preface by Lí Gōngyǐng 黎公穎 of Hòuguān, rúxué jiàoyù. The collection is omitted from Zhū Yízūn’s Míng shī zōng — for the same reason as Yáng Wéizhēn: Lǐ Jìběn did not serve the Míng.