We are therefore driven to the following, very human and natural conclusion. Plotinos's first attempts at philosophical writing had consisted of chiefly Numenian disquisitions, which would be natural in Alexandria, where Numenius had probably resided, and had left friends and successors among the Gnostics. When Plotinos went to Rome, he took these writings with him, but was too absorbed in new original Amelian treatises to resurrect his youthful Numenian attempts, which he probably did not value highly, as being the least original, and because they taught doctrines he had left behind in his Aristotelian and Stoic progress. He laid them aside. Only when Porphyry had left him, and he felt the increasing feebleness due to old age and Stoic austerities, did his attendant Eustochius urge him to preserve these early works. Plotinos was willing, and sent them to Sicily where Porphyry had retired. And so it happened with Plotinos, as it has happened with many another writer, that the last things became first, and the first became last. * * * * * The idea of classifying the works of Plotinos chronologically, therefore, has so much external proof, as well as internal indications, to support it, that, no doubt, in the future no reference will be made to Plotinos without specifying to which period it refers; and we may expect that future editions of his works will undo the grievous confusion introduced by Porphyry, and thus render Plotinos's works comparatively accessible to rational study. There are besides many other minor proofs of the chronological order of the writings of Plotinos, most of which are noticed at the heading of each succeeding book; but the most startling human references are those to Amelius's departure as a false friend;[466] to Porphyry's desire to suicide at his departure,[467] and to his own impending dissolution,[468] each of these occurring at the exact time of the event chronologically, but certainly not according to the traditional order. II. PLATONISM: SIGNIFICANCE, PROGRESS AND RESULTS.