 The author is indebted to Jeffery Long as well as Bin Song and Tobias Zürn for their indispensable assistance on the sections on Brahman and the Dao, respectively, and to John Bishop, Paul Draper, David Perry, and Samuel Ruhmkorff for reading preliminary drafts and many helpful conversations. The author is also grateful to Yujin Nagasawa for valuable comments as this entry took shape and to Edwin Curley and George Mavrodes for important formation on this topic.