13.
At the Conferences he showed the most remarkable power of going to the heart of a subject, whether in exposition or in explanation, and his phrasing was apt; but he made mistakes in certain words; for example, he said "anamnemisketai" for "anamimnesketai"—just such errors as he committed in his writing. When he was speaking his intellect visibly illuminated his face: always of winning presence, he became at these times still more engaging: a slight moisture gathered on his forehead; he radiated benignity.
He was always as ready to entertain objections as he was powerful in meeting them. At one time I myself kept interrogating him during three days as to how the soul is associated with the body, and he continued explaining; a man called Thomasius entered in the midst of our discussions; the visitor was more interested in the general drift of the system than in particular points, and said he wished to hear Plotinus expounding some theory as he would in a set treatise, but that he could not endure Porphyry's questions and answers: Plotinus asked, "But if we cannot first solve the difficulties Porphyry raises what could go into the treatise?"
14.
In style Plotinus is concise, dense with thought, terse, more lavish of ideas than of words, most often expressing himself with a fervid inspiration. He followed his own path rather than that of tradition, but in his writings both the Stoic and Peripatetic doctrines are sunk; Aristotle's Metaphysic, especially, is condensed in them, all but entire.
He had a thorough theoretical knowledge of Geometry, Mechanics, Optics and Music, though it was not in his temperament to go practically into these subjects.
At the Conferences he used to have treatises by various authors read aloud among the Platonists it might be Severus or Cronius, Numenius, Caius or Atticus; and—among the Peripatetics Aspasius, Alexander, Adrastus or some such writer, at the call of the moment. But it was far from his way to follow any of these authors blindly; he took
