5. And is not Archelaus of good repute, who declares that the principles of the whole are heat and cold ? But again in this also the grandiloquous Plato does not agree; saying that the principles are God, and matter, and example. Now then I am persuaded. For how shall I not trust a philosopher who made the chariot of Jupiter ? But behind stands his disciple Aristotle, envying his master for his coach-making. He lays down other principles, to do, and to suffer; and that the active principle is the aether, which is acted on by nothing, but the passive has four qualities, drought, moisture, heat, and cold: for by the change of these into one another all things are produced and perish. We were now tired, changing up and down with the doctrines, but I will rest on the opinion of Aristotle, and let no doctrine henceforth trouble me.