 There is some ambiguity in saying that the ultimate origin is one. Chapter 42 of the Laozi says that “the one” (yi 一) generates two, which generates three and then the myriad things, but claims that the one itself is not ultimate. It is generated from dao. Chapter 40 says that things are born from being [you 有], but being is generated from no-being [wu 無]. This reflects one of the earliest metaphysical debates—is this unitary origin a thing? There seems to have been advocates for each side, but the view that came to dominate is given as a principle in the Zhuangzi: “what things things is not itself a thing” (wuwuzhe feiwu 物物者非物) (Guo 1978, 22: 763; cf. Ziporyn 2009: 91).