Panbiblion Plotinos: Complete Works, v. 4 In Chronological Order, Grouped in Four Periods Plotinus and Guthrie, Kenneth Sylvan Plotinos: Complete Works, v. 4 In Chronological Order, Grouped in Four Periods / PRINCIPLES OF THE THEORY OF THE INTELLIGIBLES, BY PORPHYRY.321 FIRST ENNEAD,322 BOOK TWO. Of Virtues. PRINCIPLES OF THE THEORY OF THE INTELLIGIBLES, BY PORPHYRY.321 FIRST ENNEAD,322 BOOK TWO. Of Virtues. Project Gutenberg EPUB3 edition Plotinus and Guthrie, Kenneth Sylvan