Pyrrho, Greek philosopher from Elis, credited as being the first skeptic philosopher and inspiration for the school known as Pyrrhonism (b. c. 360 BC)
Barnes, Jonathan, "Diogenes Laertius IX 61–116: the philosophy of Pyrrhonism" in W. Haase and H. Temporini (ed.) Aufstieg und Niedergang der römischen Welt, II 36.6 (de Gruyter: Berlin/New York, 1992): pp.