Book excerpt: "This is the first full-length commentary on Plotinus' Ennead I.4 (46), a work written at a late stage in Plotinus' life when he was suffering from an illness that was shortly to prove fatal. The main concern of Ennead I.4 (46) is the good man and his pursuit of the good life. The treatise is therefore central to our understanding of Plotinus' ethical theory, and Kieran McGroarty's commentary seeks to explicate and elucidate it from a philosophical standpoint. The author's own English translation is printed on pages facing the Greek text (the editio minor of P. Henry and H. R. Schwyzer). Each chapter of the commentary begins with a short summary of the content followed by detailed discussion of paragraphs, lines, and, where necessary, individual words. McGroarty explains the structure of Plotinus' argument and identifies the sources he uses and critiques. The commentary confirms what Porphyry notes in his Life of Plotinus, that the Enneads are indeed full of hidden Stoic and Peripatetic doctrines. Appendices contain discussions of Plotinus' view on suicide, and his use of St. Ambrose's sermon On Jacob and the Good Life."--BOOK JACKET.