In Ennead II.1 (40) Plotinus is primarily concerned to argue for the everlastingness of the universe, the heavens, and the heavenly bodies as individual substances. Here he must grapple both with the philosophical issue of personal identity through time and with the rich tradition of cosmology which pitted the Platonists against the Aristotelians and Stoics. What results is a historically informed cosmological sketch explaining the constitution of the heavens as well as sublunar and celestial motion. This book contains an extensive introduction aimed at providing the necessary background in Platonic, Aristotelian, and Stoic cosmology, the text itself, and a line-by-line commentary designed to elucidate its philosophical, philological and historical details.

Forms, Souls, and Embryos allows readers coming from different backgrounds to appreciate the depth and originality with which the Neoplatonists engaged with and responded to a number of philosophical questions central to human reproduction, including: What is the causal explanation of the embryo's formation? How and to what extent are Platonic Forms involved? In what sense is a fetus 'alive,' and when does it become a human being? Where does the embryo's soul come from, and how is it connected to its body? This is the first full-length study in English of this fascinating subject, and is a must-read for anyone interested in Neoplatonism or the history of medicine and embryology.

Concerning embryos, Porphyry takes an original view on issues that had been left undecided by his teacher Plotinus and earlier by the doctor Galen. What role is played in the development of the embryo by the souls or the natures of the father, of the mother, of the embryo, or of the whole world? Porphyry's detailed answer, in contrast to Aristotle's, gives a significant role to the soul and to the nature of the mother, without, however, abandoning Aristotle's view that the mother supplies no seed. In the fragments of On What is in Our Power, "Porphyry" discusses Plato's idea that we choose each of our incarnations, and so are responsible for what happens in our lives. This volume contains an English translation of the two commentaries, as well as extensive notes, an introduction and a bibliography.

Plotinus stands at a crossroads in ancient philosophy, between the more than 600 years of philosophy that came before him and the new Platonic tradition. He was the first and perhaps the greatest systematizer of Plato's thought, and all later students of Plato in the following centuries approached Plato through him. This Companion from a new generation of ancient philosophy scholars reflects the current state of research on Plotinus, with chapters on topics including mathematics, fate and determinism, happiness, the theory of forms, categories of reality, matter and evil, and Plotinus' legacy. The volume offers an accessible overview of the thought of one of the pivotal figures in the history of philosophy, and reveals his importance as a thinker whose impact goes far beyond his importance as an interpreter of Plato.

Plotinus stands at a crossroads in ancient philosophy, between the more than 600 years of philosophy that came before him and the new Platonic tradition. He was the first and perhaps the greatest systematizer of Plato's thought, and all later students of Plato in the following centuries approached Plato through him. This Companion from a new generation of ancient philosophy scholars reflects the current state of research on Plotinus, with chapters on topics including mathematics, fate and determinism, happiness, the theory of forms, categories of reality, matter and evil, and Plotinus' legacy. The volume offers an accessible overview of the thought of one of the pivotal figures in the history of philosophy, and reveals his importance as a thinker whose impact goes far beyond his importance as an interpreter of Plato.

Forms, Souls, and Embryos allows readers coming from different backgrounds to appreciate the depth and originality with which the Neoplatonists engaged with and responded to a number of philosophical questions central to human reproduction, including: What is the causal explanation of the embryo's formation? How and to what extent are Platonic Forms involved? In what sense is a fetus 'alive,' and when does it become a human being? Where does the embryo's soul come from, and how is it connected to its body? This is the first full-length study in English of this fascinating subject, and is a must-read for anyone interested in Neoplatonism or the history of medicine and embryology.

The two texts translated in this volume of the Ancient Commentators on Aristotle series both compare the happiness of the practical life, which is subject to the hazards of fortune, with the happiness of the life of philosophical contemplation, which is subject to fewer needs. The first is Michael of Ephesus' 12th-century commentary on Book 10 of Aristotle's Nicomachean Ethics, written (alongside his commentaries on Books 5 and 9) to fill gaps in the Neoplatonists' commentaries from the 6th century. He recognizes that lives of practicality and philosophy may be combined, and gives his own account of the superiority of the contemplative. The second is Themistius' text On Virtue, written in the 4th century AD. He was an important teacher and commentator on Aristotle, an orator and leading civil servant in Constantinople. His philosophical oration is here argued to be written in support of the Emperor Julian's insistence against the misuse of free speech by a Cynic Heraclius, who had satirised him. Julian had previously criticised Themistius but here he combines his political and philosophical roles in seeking to mend relations with his former pupil.

"Ancient Commentators on Aristotle" series, General Editor: Richard Sorabji. Until the launch of this series over fifteen years ago, the 15,000 volumes of the ancient Greek commentators on Aristotle, written mainly between 200 and 600 AD, constituted the largest corpus of extant Greek philosophical writings not translated into English or other European languages. Over 40 volumes have now appeared in the series, which is planned in some 80 volumes altogether. In chapters 12-18 of "Against Proclus", Philoponus continues to do battle against Proclus' arguments for the beginninglessness and everlastingness of the ordered universe. In this final section there are three notable issues under discussion. The first concerns the composition of the heavens and its manner of movement. Philoponus argues against the Aristotelian thesis that there is a fifth heavenly body that has a natural circular motion. He concludes that even though the celestial region is composed of fire and the other three elements, it can move in a circle by the agency of its soul, and that this circular motion is not compromised in any way by the innate natural motion of the fire. Chapter 16 contains an extended discussion of the will of God and His relation to particulars. Here Philoponus addresses issues that become central to medieval philosophical and theological discussions, including the unity, timelessness and indivisibility of God's will. Finally, throughout these seven chapters Philoponus is engaged in a detailed exegesis of Plato's Timaeus which aims to settle a number of familiar interpretive problems, notably how we should properly understand the pre-cosmic state of disorderly motion, and the statement that the visible cosmos is an image of the paradigm. Philoponus' exegetical concerns culminate in chapter 18 with an extensive discussion of Plato's attitude to poetry and myth.

Many philosophers and scientists over the course of history have held that the world is alive. It has a soul, which governs it and binds it together. This suggestion, once so wide-spread, may strike many of us today as strange and antiquated-in fact, there are few other concepts that, on their face, so capture the sheer distance between us and our philosophical inheritance. But the idea of a world soul has held so strong a grip upon philosophers' imaginations for over 2,000 years, that it continues to underpin and even structure how we conceive of time and space. The concept of the world soul is difficult to understand in large part because over the course of history it has been invoked to very different ends and within the frameworks of very different ontologies and philosophical systems, with varying concepts of the world soul emerging as a result. This volume brings together eleven chapters by leading philosophers in their respective fields that collectively explore the various ways in which this concept has been understood and employed, covering the following philosophical areas: Platonism, Stoicism, Medieval, Indian or Vedantic, Kabbalah, Renaissance, Early Modern, German Romanticism, German Idealism, American Transcendentalism, and contemporary quantum mechanics and panpsychism theories. In addition, short reflections illuminate the impact the concept of the world soul has had on a small selection of areas outside of philosophy, such as harmony, the biological concept of spontaneous generation, Henry Purcell, psychoanalysis, and Gaia theories.

Despite Platonism's unquestioned claim to being one of the most influential movements in the history of philosophy, for a long time the conventional wisdom was that Platonists of late antiquity, or Neoplatonists, were so focused on otherworldly metaphysics that they simply neglected any serious study of the sensible world, which after all is 'merely' an image of the intelligible world. Only recently has this conventional wisdom begun to be dispelled. In fact, it is precisely because these thinkers did see the sensible world as an image of the intelligible world that they devoted so much time and energy to understanding its inner workings. Thus we find Neoplatonists writing on embryology, physiology, meteorology, and astronomy, among other subjects. Neoplatonism and the Philosophy of Nature collects essays by leading international scholars in the field which shed new light on how the Neoplatonists sought to understand and explain nature and natural phenomena. It is thematically divided into two parts, with the first part-The General Metaphysics of Nature-directed at the explication of central Neoplatonic metaphysical doctrines and their relation to the natural world, and the second part-Platonic Approaches to Individual Sciences-showing how these same doctrines play out in individual natural sciences such as elemental physics, geography, and biology. Together these essays show that a serious examination of Neoplatonic natural philosophy has far-reaching consequences for our general understanding of the metaphysics of Platonism as well as for our evaluation of their place in the history of science.

Many philosophers and scientists over the course of history have held that the world is alive. It has a soul, which governs it and binds it together. This suggestion, once so wide-spread, may strike many of us today as strange and antiquated-in fact, there are few other concepts that, on their face, so capture the sheer distance between us and our philosophical inheritance. But the idea of a world soul has held so strong a grip upon philosophers' imaginations for over 2,000 years, that it continues to underpin and even structure how we conceive of time and space. The concept of the world soul is difficult to understand in large part because over the course of history it has been invoked to very different ends and within the frameworks of very different ontologies and philosophical systems, with varying concepts of the world soul emerging as a result. This volume brings together eleven chapters by leading philosophers in their respective fields that collectively explore the various ways in which this concept has been understood and employed, covering the following philosophical areas: Platonism, Stoicism, Medieval, Indian or Vedantic, Kabbalah, Renaissance, Early Modern, German Romanticism, German Idealism, American Transcendentalism, and contemporary quantum mechanics and panpsychism theories. In addition, short reflections illuminate the impact the concept of the world soul has had on a small selection of areas outside of philosophy, such as harmony, the biological concept of spontaneous generation, Henry Purcell, psychoanalysis, and Gaia theories.

In chapters 12-18 of Against Proclus, Philoponus continues to do battle against Proclus' arguments for the beginninglessness and everlastingness of the ordered universe. In this final section there are three notable issues under discussion. The first concerns the composition of the heavens and its manner of movement. Philoponus argues against the Aristotelian thesis that there is a fifth heavenly body that has a natural circular motion. He concludes that even though the celestial region is composed of fire and the other three elements, it can move in a circle by the agency of its soul, and that this circular motion is not compromised in any way by the innate natural motion of the fire.Chapter 16 contains an extended discussion of the will of God and His relation to particulars. Here Philoponus addresses issues that become central to medieval philosophical and theological discussions, including the unity, timelessness and indivisibility of God's will. Finally, throughout these seven chapters Philoponus is engaged in a detailed exegesis of Plato's Timaeus which aims to settle a number of familiar interpretive problems, notably how we should understand the pre-cosmic state of disorderly motion, and the statement that the visible cosmos is an image of the paradigm. Philoponus' exegetical concerns culminate in chapter 18 with an extensive discussion of Plato's attitude to poetry and myth.

Concerning embryos, Porphyry takes an original view on issues that had been left undecided by his teacher Plotinus and earlier by the doctor Galen. What role is played in the development of the embryo by the souls or the natures of the father, of the mother, of the embryo, or of the whole world? Porphyry's detailed answer, in contrast to Aristotle's, gives a significant role to the soul and to the nature of the mother, without, however, abandoning Aristotle's view that the mother supplies no seed. In the fragments of "On What is in Our Power," "Porphyry" discusses Plato's idea that we choose each of our incarnations, and so are responsible for what happens in our lives.This volume contains an English translation of the two commentaries, as well as extensive notes, an introduction and a bibliography.

The two texts translated in this volume of the Ancient Commentators on Aristotle series both compare the happiness of the practical life, which is subject to the hazards of fortune, with the happiness of the life of philosophical contemplation, which is subject to fewer needs. The first is Michael of Ephesus' 12th-century commentary on Book 10 of Aristotle's Nicomachean Ethics, written (alongside his commentaries on Books 5 and 9) to fill gaps in the Neoplatonists' commentaries from the 6th century. He recognizes that lives of practicality and philosophy may be combined, and gives his own account of the superiority of the contemplative. The second is Themistius' text On Virtue, written in the 4th century AD. He was an important teacher and commentator on Aristotle, an orator and leading civil servant in Constantinople. His philosophical oration is here argued to be written in support of the Emperor Julian's insistence against the misuse of free speech by a Cynic Heraclius, who had satirised him. Julian had previously criticised Themistius but here he combines his political and philosophical roles in seeking to mend relations with his former pupil.