Plotinus
Late Antique · Europe · 204 to 270
Philosopher who taught in Rome. He said all things flow from one source that words cannot describe, and that the soul can return to it.
What it is
Plotinus (about 204 to 270 CE) was a philosopher of late antiquity, the founder of Neoplatonism, who described all of reality as flowing from a single first principle, the One, through Intellect and Soul, and taught that the soul can return to it. His thought is counted among the supreme intellectual achievements of the late ancient world, and it shaped philosophy and religion through the Middle Ages and the Renaissance.
He was born in Egypt and studied in Alexandria with the teacher Ammonius Saccas. He joined an expedition of the emperor Gordian against Persia, and afterwards moved to Rome, where he set up a school of philosophy. His student Porphyry edited his writings into six books of nine treatises each, which is why the collection is called the Enneads, from the Greek word for nine.
The main ideas
- Starting from Plato. Plotinus took his lead from his reading of Plato and wanted to hand on the long tradition of Greek rationalism. His writings also contain doctrines from the Stoics and from Aristotle's followers, and he uses Aristotle's idea of a prime mover.
- Three foundations. He taught that reality has three basic elements: the One, also called the Good, which is the first principle of everything; Intellect, which is the realm of thought; and Soul. All existence comes from the productive unity of these three.
- Contemplation makes things. In his system contemplation is not only a way of knowing. It is a productive principle, and everything that exists is united through it in a single reality.
- The soul's return. The soul, led by desire for the Good and by the beauty of the divine, can find union with the first principle, and he describes this in terms of direct experience.
- Matter and evil. He discussed what matter is and where evil comes from, topics given sections of their own in the standard accounts of his thought.
What it looks like in practice
Picture someone who finds that no achievement leaves them satisfied for long. A follower of Plotinus would say that the dissatisfaction is a sign of desire for something beyond any single thing, and that the way forward is inward, through the practice of thought and attention, toward what is beautiful and good in itself. This is an illustration of the idea, not a passage from the Enneads.
Books and moments
- The Enneads are all that we have from him, arranged by Porphyry in six groups of nine.
- Ammonius Saccas was his teacher in Alexandria.
- The expedition of Gordian against Persia, which he joined, was the occasion for his move to Rome.
Questions and criticism
- Is the One beyond all description? If the first principle is beyond thought and speech, it is fair to ask how it can be described at all.
- Where does evil come from? If everything flows from the Good, readers ask how the lower levels can fall short.
- Philosophy or religion? His doctrine of the soul's union with the first principle has been read as philosophy and as mysticism.
Close neighbours
Plotinus began from Plato, so the page on Plato is the natural companion. The page on Aristotle covers the thinker whose idea of a prime mover he used.
Written by epchē in our own words, and checked against independent sources on 9 October 2026. The sources are listed below.
Who they connect to
Influenced
- Al-Kindi · A paraphrase of Plotinus circulated in Arabic as the Theology of Aristotle in al-Kindi's circle.
- Augustine of Hippo · Augustine credits the books of the Platonists, chiefly Plotinus, with freeing him from a material picture of God.
- Hypatia of Alexandria · She taught in the Platonic tradition that Plotinus shaped.
- Porphyry · He studied under Plotinus and edited his writings into the Enneads.
- Proclus · He took Plotinus' picture of the One and the levels below it and made it into a strict system.
- Suhrawardi · Suhrawardi's ideas of light flowing out from a source share the pattern, found in Plotinus, of reality in ranked levels. (scholars disagree about this link)
Influenced by
- Aristotle · Plotinus used Aristotelian ideas of actuality and intellect inside a Platonic frame.
- Plato · Plotinus saw himself as an interpreter of Plato.
Other Late Antique thinkers
- Porphyry · 234 to 305
- Augustine of Hippo · 354 to 430
- Hypatia of Alexandria · 360 to 415
- Proclus · 412 to 485
- Boethius · 477 to 524