Yáng Xióng 揚雄 (53 BCE – 18 CE), zì Zǐ yún 子雲, was one of the great Western-Hàn literary and philosophical figures — fù-poet, lexicographer (Fāng yán 方言), and author of two major classical imitations: the Tài xuán jīng 太玄經 (KR5f0017) modeled on the Yì jīng and the Fǎ yán 法言 modeled on the Lún yǔ. Served at the court of Wáng Mǎng 王莽 — a connection that damaged his posthumous reputation but did not erase his stature as an intellectual forebear of the 2nd-century xuán xué 玄學 tradition.