Let us then run over, if you choose, the opinions of the philosophers, to which they give boastful utterance, respecting the gods; that we may discover philosophy itself, through its conceit making an idol of matter; although we are able to show, as we proceed, that even while deifying certain demons, it has a dream of the truth. The elements were designated as the first principles of all things by some of them: by Thales of Miletus, who celebrated water, and Anaximenes, also of Miletus, who celebrated air as the first principle of all things, and was followed afterwards by Diogenes of Apollonia. Parmenides of Elia introduced fire and earth as gods; one of which, namely fire, Hippasus of Metapontum and Heraclitus of Ephesus supposed a divinity. Empedocles of Agrigentum fell in with a multitude, and, in addition to those four elements, enumerates disagreement and agreement. Atheists surely these are to be reckoned, who through an unwise wisdom worshipped matter, who did not indeed pay religious honour to stocks and stones, but deified earth, the mother of these,—who did not make an image of Poseidon, but revered water itself. For what else, according to the original signification, is Poseidon, but a moist substance? the name being derived from posis (drink); as, beyond doubt, the warlike Ares is so called, from arsis (rising up) and anœresis (destroying). For this reason mainly, I think, many fix a sword into the ground, and sacrifice to it as to Ares. The Scythians have a practice of this nature, as Eudoxus tells us in the second book of his Travels. The Sauromatæ, too, a tribe of the Scythians, worship a sabre, as Ikesius says in his work on Mysteries.