Like Socrates, Pyrrho of Elis left us no text.
We know that he lived between the 4th and 3rd centuries BC, and that he joined Alexander the Great’s expedition to India. Diogenes Laertius tells that he was a painter at first, that he then heard the lessons of Bryson and had contacts with the Gymnosophists in India. What we know of his teachings comes from Timon and makes Pyrrho the precursor of Sextus Empiricus, Saturninus and others who between 150 and 250 BC defined themselves as skeptics in the Hellenistic period.