Shí Tài 石泰 (trad. 1022–1158), zì Dé zhī 得之, styled Xìng lín zhēn rén 杏林真人, of Cháng zhōu 常州 (Jiāngsū). Second patriarch of the Southern Lineage (Nán zōng 南宗) of Daoist inner alchemy, direct disciple of Zhāng Bóduān and teacher of Xuē Dàoguāng. Author of KR5d0114 Huán yuán piān 還源篇.