Plotinus was much exercised by Plato's doctrines of the soul. In this treatise, at chapter 1 line 27, he talks of "e;the divine Plato, who has said in many places in his works many noble things about the soul and its arrival here, so that we can hope for some clarity from him. So what does the philosopher say? It is clear that he does not always speak with sufficient consistency for us to make out his intentions with any ease."e; The issue in this treatise is one that has puzzled students of Plato from ancient to modern times-and is indeed a popular topic for undergraduate essays even today: Why should the philosopher, who has ascended through a long and painful process of dialectic to "e;assimilation to the divine,"e; ever descend back into the body? Plotinus himself is said by Porphyry to have attained such a state of other-worldly transcendence on at least four occasions during his lifetime, so this was a very real and personal issue for him. In this treatise we see him grappling with it.

Filling the void in the current scholarship, Giannis Stamatellos provides the first book-length study of the Presocratic influences in Plotinus' Enneads. Widely regarded as the founder of Neoplatonism, Plotinus (204–270 AD) assimilated eight centuries of Greek thought into his work. In this book Stamatellos focuses on eminent Presocratic thinkers who are significant in Plotinus' thought, including Heraclitus, Parmenides, Empedocles, Anaxagoras, the early Pythagoreans, and the early Atomists. The Presocratic references found in the Enneads are studied in connection with Plotinus' fundamental theories of the One and the unity of being, intellect and the structure of the intelligible world, the nature of eternity and time, the formation of the material world, and the nature of the ensouled body. Stamatellos concludes that, contrary to modern scholarship's dismissal of Presocratic influence in the Enneads, Presocratic philosophy is in fact an important source for Plotinus, which he recognized as valuable in its own right and adapted for key topics in his thought.

In Plotinus on Love, Alberto Bertozzi argues that love is the origin, culmination, and regulative force of the double movement that characterizes Plotinus' metaphysics: the derivation of all reality from the One and the return of the soul to it.

This book explores the constitutive role alterity plays in identity formation in Western and Eastern traditions. It examines the significance of difference in conceptions of identity across major philosophical and religious traditions in a global and comparative context, considering Ancient Greek and Egyptian, Chinese, Islamic, European and Japanese philosophies. In addition, the book opens up discussion of less dominant trends in philosophical thinking, particularly the spaces between self-same existence and otherness in the histories of philosophical and religious thought. Chapters critique both essentialist and postmodern understandings of self-constitution by questioning the ordinary narrative of identity construction across Western and non-Western traditions. The book also explores the construction of selfhood from a wide range of perspectives, drawing upon individual philosophers (including Plotinus, Descartes, Geulincx, Hume, de Beauvoir and Ueda) as well as religious and philosophical movements, including Confucian philosophy, Zen Buddhism, Protestantism and Post-Phenomenology. Differences in Identity in Philosophy and Religion represents a landmark study, drawing together a range of approaches, perspectives and traditions to explore how identity is constructed across the world.

This study offers an innovative understanding of the central role of the act of contemplation in the philosophy of Plotinus.

Platonists beginning in the Old Academy itself and up to and including Plotinus struggled to understand and articulate the relation between Plato's Demiurge and the Living Animal which served as the model for creation. The central question is whether "e;contents"e; of the Living Animal, the Forms, are internal to the mind of the Demiurge or external and independent. For Plotinus, the solution depends heavily on how the Intellect that is the Demiurge and the Forms or intelligibles are to be understood in relation to the first principle of all, the One or the Good. The treatise V.5 [32] sets out the case for the internality of Forms and argues for the necessary existence of an absolutely simple and transcendent first principle of all, the One or the Good. Not only Intellect and the Forms, but everything else depends on this principle for their being.

Ennead I.1 is a succinct and concentrated analysis of key themes in Plotinus' psychology and ethics. It focuses on the soul-body relation, discussing various Platonic, Aristotelian, and Stoic views before arguing that there is only a soul-trace in the body (forming with the body a "e;compound"e;), while the reasoning soul itself is impassive and flawless. The soul-trace hypothesis is used to account for human emotions, beliefs, and perceptions, and human fallibility in general. Its problematic relation to our rational powers, as well as the question of moral responsibility, are explored. Plotinus develops his original and characteristic concept of the self or "e;we,"e; which is so called because it is investigated as something common to all humans (rather than a private individual self), and because it is multiple, referring to the reasoning soul or to the "e;living thing"e; composed of soul-trace and body. Plotinus explores the relation between the "e;we"e; and consciousness, and also its relation to the higher metaphysical entities, the Good, and Intellect.

The Eighth Edition of Steven M. Cahn's Classics of Western Philosophy offers the same exacting standard of editing and translation that made earlier editions of this anthology the most highly valued and widely used volume of its kind. But the Eighth Edition offers exciting new content as well: Plato's Laches (complete), new selections from Aristotle's Nicomachean Ethics (on courage), Descartes' Discourse on Method (complete), all previously omitted sections of Berkeley's A Treatise Concerning the Principles of Human Knowledge, Kant's Prolegomena to Any Future Metaphysics (complete). These additions—with no offsetting deletion of content of the Seventh Edition—yield an anthology of unrivaled versatility, the only one to offer the complete texts of: both Descartes' Discourse on Method and Meditations on First Philosophy, both Berkeley's A Treatise Concerning the Principles of Human Knowledge and Three Dialogues between Hylas and Philonous, Kant's Prolegomena to Any Future Metaphysics and selections from the Critique of Pure Reason.

Aristotle and Plotinus set the horizon of inquiry—thinking is thinking on thinking. Discussion of mind, meaning, and subjectivity begins with the question, How is thinking on thinking different from the kind of thinking with which we are familiar? The answer is that ‘thinking on thinking’ is about the presuppositions, concepts, and problems that generate questions in ancient and modern metaphysics, epistemology, aesthetics, philosophy of mind, and philosophy of language. Topics examined include the nature of intentionality and meaning, identity and relation, mind and consciousness, self-identity and subjectivity—which lead into discussions concerning other minds, the limits of thought and language, and the emergence of aesthetics of the self. The effects of ‘thinking on thinking’ are mapped, particularly in parsing problems in ancient, modern analytic, and phenomenological thought, with advocacy of its importance in the present age.