How was the universe created, and what is our place within it? These are the questions at the heart of Plotinus' Against the Gnostics. For the Gnostics, the universe came into being as a result of the soul's fall from intelligible reality-it is the evil outcome of a botched creation. Plotinus challenges this, and insists that the soul's creation of the world is the necessary consequence of its contemplation of the ideal forms. While the Gnostics claim to despise the visible universe, Plotinus argues that such contempt displays their ignorance of the higher realities of which the cosmos is a beautiful image.

In Ennead II.1 (40) Plotinus grapples 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. James Wilberding presents an extensive introduction, the text itself, and a commentary offering a line-by-line interpretation of the work's philosophical, philological and historical details.

At least two modern conferences within Hellenic philosophy fields of study have been held in order to address what Plotinus stated in his tract Against the Gnostics and whom he was addressing it to, in order to separate and clarify the events and persons involved in the origin of the term "Gnostic". From the dialogue, it appears that the word had an origin in the Platonic and Hellenistic tradition long before the group calling themselves "Gnostics"--or the group covered under the modern term "Gnosticism"--ever appeared. It would seem that this shift from Platonic to Gnostic usage has led many people to confusion. The strategy of sectarians taking Greek terms from philosophical contexts and re-applying them to religious contexts was popular in Christianity, the Cult of Isis and other ancient religious contexts including Hermetic ones (see Alexander of Abonutichus for an example).Plotinus and the Neoplatonists viewed Gnosticism as a form of heresy or sectarianism to the Pythagorean and Platonic philosophy of the Mediterranean and Middle East. He accused them of using senseless jargon and being overly dramatic and insolent in their distortion of Plato's ontology." Plotinus attacks his opponents as untraditional, irrational and immoral and arrogant. He also attacks them as elitist and blasphemous to Plato for the Gnostics despising the material world and its maker.The Neoplatonic movement (though Plotinus would have simply referred to himself as a philosopher of Plato) seems to be motivated by the desire of Plotinus to revive the pagan philosophical tradition. Plotinus was not claiming to innovate with the Enneads, but to clarify aspects of the works of Plato that he considered misrepresented or misunderstood. Plotinus does not claim to be an innovator, but rather a communicator of a tradition. Plotinus referred to tradition as a way to interpret Plato's intentions. Because the teachings of Plato were for members of the academy rather than the general public, it was easy for outsiders to misunderstand Plato's meaning. However, Plotinus attempted to clarify how the philosophers of the academy had not arrived at the same conclusions (such as misotheism or dystheism of the creator God as an answer to the problem of evil) as the targets of his criticism.

The philosophy of Plotinus is usually depicted as a quest for the absolute, outside and beyond the world of human knowledge and experience. Yet in the late treatise Ennead 5.3 [49], Plotinus shows himself a philosopher of the transcendental, rather than of the transcendent. Starting from a critical analysis of the idea of self-knowledge, he develops a world-view in which central notions of his metaphysics are represented, not as different “hypostases” or transcendent beings, but as limiting cases of reality as we human beings know it. Fundamental to this world-view is Plotinus' assumption that a close analogy can be established between the psychological and the physical description of man.

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.

On Our Allotted Guardian Spirit is a lively and at times perplexing text combining general reflections on the nature of the soul with a discussion of the phenomenon of a personal guardian spirit. Plotinus wants to interpret Plato, and aims to integrate Plato's various statements about daimones into one comprehensive theory. This leads to some views that are, if not exotic, then at least strange on first encounter. However, a closer reading reveals that Plotinus is not interested in demonology per se. Instead, the central concern of the treatise are ideas about the soul, the self, and self-consciousness. Plotinus' explorations produce a theory of the mind as the agent and activity responsible for a person’s ethical choices and conduct of life. The demon emerges as a philosophical tool passed down from Plato, but adapted and rationalized to try to explain motivation to action, the impulse toward the ethical life, and even the various differences in human ethical and psychological constitution. This innovative theory is a response to a strong and ongoing current of thought in the philosophical tradition. The introduction offers an overview of ancient demonologies, starting with Homer and the Presocratics, and is followed by an in-depth examination of Plato, the Stoics, Plotinus, and later Neoplatonic developments. As such the book presents Plotinus’ specific rationalizing response to the idea of a guardian spirit in the context of ancient philosophical demonologies.

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.

'The Essential Plotinus is a lifesaver. For many years my students in Greek and Roman Religion have depended on it to understand the transition from antiquity to the Middle Ages. The translation is crisp and clear, and the excerpts are just right for an introduction to Plotionus's many-layered view of the world and humankind's place in it' - F. E. Romer, University of Arizona

This book represents the first ever systematic philosophical study of Marsilio Ficino’s Commentary on Plotinus’ ‘Enneads’ (first published in Florence, 1492), this work of Ficino being arguably as definitive for the Florentine thinker’s later work as the Platonic Theology was for his earlier. Publication of the present study uniquely illuminates the extent to which Plotinus had always been the crucial influence over Ficino’s revolutionary projects of introducing Platonic thought based on original Greek sources to western Europe, correcting certain features of late medieval and Renaissance Aristotelianism, and laying the foundations of a new Christian Platonism. The study can be read both as an independent introduction to Ficino’s later philosophy and as the complement to the first modern edition and translation of the Commentary on the 'Enneads' itself also by Stephen Gersh (I Tatti Renaissance Library, 2017-).

First published in 1999. We are fortunate in possessing a fascinating document, The Life of Plotinus, written by the philosopher Porphyry, a pupil and associate of Plotinus for the last eight years of his life. The basic facts contained in this Life can be quickly recounted. Plotinus was likely a Greek born in Egypt in AD 205. It is possible, though, that he came from a Hellenized Egyptian or Roman family. In his 28th year, Plotinus discovered in himself a thirst for philosophy. This is a collection of his works- Ennead I contains treatises on what Porphyry calls “ethical matters”; Enneads II–III contain treatises on natural philosophy or cosmology, with some rationalizations for the inclusion of III. 4, 5, 7, and 8. Ennead IV concerns the soul; V Intellect or and VI being, numbers, and the One. The thematic unity of Enneads I, IV, and V is somewhat greater than the rest.