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Plotinus and Neoplatonism
c. AD 204–270· Philosopher· Reality, mind & God
Well documentedSolid records, texts or physical evidence.
Egyptian-born, Greek-writing philosopher who recast Plato into Neoplatonism, a system in which everything flows from a single source, the One.
See it on the Philosophy map →The idea
Idea: reality is a ladder descending from the One, a perfect source beyond description, through Mind (Nous, home of Plato's Forms) and Soul to the material world, the dimmest level. Evil is a lack of good, not a force. The goal is to turn inward and climb back to union with the One. Plotinus taught in Rome from 244; his pupil Porphyry arranged his essays into six sets of nine, the Enneads. Main objection: the One seems too remote to explain anything.
Why it matters
Neoplatonism became the philosophical frame of Christian, Jewish and Islamic theology for a thousand years, through Augustine, Pseudo-Dionysius and al-Farabi.
Think of it like
Like sunlight: the sun loses nothing by shining, but its light grows dimmer the farther it travels. Plotinus used this image himself.
Legacy and sources
The Enneads survive complete; Porphyry's Life of Plotinus describes his teaching and says he reached mystical union with the One four times.
Still debated
His teacher Ammonius Saccas wrote nothing, so how much Plotinus owed him, or Indian and Persian ideas, is unknown.
Connections (3)
▸Plato was reworked by Plotinus and NeoplatonismWell documented
The connection
Plotinus saw himself as simply explaining Plato. He took the Republic's Form of the Good, 'beyond being', and the One of the Parmenides, and made them a single first principle from which Mind, Soul and matter flow. Plato's split between Forms and world became a graded ladder.
When and how
Rome, AD 244–270, about 600 years after Plato; edited by Porphyry as the Enneads.
How we know
The Enneads constantly quote and interpret Plato's dialogues, especially the Timaeus, Republic, Parmenides and Symposium.
Debates and open questions
Whether Plotinus faithfully developed Plato or built a new system is debated; the label 'Neoplatonist' was coined by modern scholars, not used by him.
▸Plotinus and Neoplatonism influenced Augustine of HippoWell documented
The connection
Reading 'books of the Platonists', probably Plotinus and Porphyry in Latin, freed Augustine from the Manichaean view of evil as a substance. He took from them God as immaterial, evil as an absence of good, and the inward climb toward God, themes that run through the Confessions.
When and how
Milan, 386, in Latin translations by Marius Victorinus, a few months before his conversion.
How we know
Confessions Book 7 describes these books and their effect; parallels with the Enneads are close and widely recognized.
Debates and open questions
Exactly which treatises he read, and how much came from Porphyry rather than Plotinus, is debated.
▸Plotinus and Neoplatonism shaped Philosophy in the Islamic world (falsafa)Well documented
The connection
Through Arabic paraphrases, Plotinus' picture of everything flowing from the One reached Islamic thinkers. Al-Farabi and Avicenna built their cosmos on this emanation scheme: a chain of intellects descending from God to the heavens and down to our world.
When and how
Baghdad, 9th century, in al-Kindi's circle, where the 'Theology of Aristotle' paraphrased parts of Enneads IV–VI.
How we know
The Arabic 'Theology of Aristotle' survives and closely paraphrases Plotinus; al-Farabi's and Avicenna's emanation schemes follow its pattern.
Debates and open questions
Because the text was credited to Aristotle, most Islamic philosophers did not know they were following Plotinus; how this mix-up shaped their reading is still studied.