Who is Huan Yuan 环渊?

Huan Yuan, a Jixia scholar during the reign of King Xuan of Qi, was a native of Chu who lived approximately during the same period as Tian Pian. Also known as Juan Xu, Bian Juan, Xuan Yuan, Juan Xu, and Bian Xu, he "studied the teachings of Huang-Lao Daoism and systematically expounded their essential principles." He authored two volumes discussing matters of governance and social order, "addressing issues of political stability and chaos to advise rulers of his time." The Book of Han·Treatise on Literature records "Juanzi in thirteen chapters," with annotations stating: "Named Yuan, from Chu, a disciple of Laozi."