Let us compare with this historical evidence, that which supports the universally admitted dependence of Plotinos on his teacher Ammonius. We have only two witnesses: Hierocles and Nemesius; and the latter attributes the argument for the immateriality of the soul to Ammonius and Numenius jointly. No doubt, Ammonius may have taught Plotinos in his youth; but so no doubt did other teachers; and of Ammonius the only survivals are a few pages preserved by Nemesius. The testimony for Plotinos's dependence on Numenius is therefore much more historical, as well as significant, in view of Numenius having left written records that were widely quoted. The title of "Father of Neo-platonism," therefore, if it must at all be awarded, should go to Numenius, who had written a "History of the Platonic Succession," wherein he attempts to restore "original" Platonism. This fits the title "Neo-platonism," whereas the philosophy of Ammonius, would be better described as an eclectic synthesis of Platonism and Aristotelianism. 3. CONTRAST BETWEEN THEM. Of course we shall admit that there are differences between Plotinos and Numenius, at least during his Porphyrian period; this was inevitable while dismissing his Numenian secretary Amelius,[575] a friend "who had become imbued with" such doctrines before becoming the friend of Plotinos, who persevered in them, and wrote in justification thereof. We find that the book chronologically preceding this one is v. 5, on the very subject at issue between Amelius and Porphyry. Plotinos took his stand with the latter, and therefore against the former, and through him, against Numenius; and indeed we find him opposing several Gnostic opinions which can be substantiated in Numenius: the creation by illumination or emanation,[576] the threefoldness of the creator,[577] and the pilot's forgetting himself in his work.[578] But, after all, these points are not as important as they might seem; for in a very little while we find Plotinos himself admitting the substance of all of these ideas, except the verbiage; he himself uses the light and ray simile, the "light of light;"[579] he himself distinguishes various phases of the allegedly single intelligence,[580] and the soul, as pilot of the body incarnates by the very forgetfulness by which the creator created.[581]