This work is a translation of the Xiang'er commentary to the Daodejing and Jao Tsung-i's (1917-2018) supplemental notes and analysis. Jao Tsung-i offers a historically and hermeneutically rich study of the Xiang’er Commentary, discovered in the Mogao caves at Dunhuang in the final years of the Qing Dynasty, and its author Zhang Daoling. Opening a new and fascinating window into the early rece…