He composed fifty-four books, which are grouped in six enneads.
This is how we have distributed into six Enneads the fifty-four books of Plotinos.
His writings were arranged by his disciple, Porphyry, and edited in six Enneads.
The Enneads of Plotinus are the fundamental documents of Neoplatonism.
Nine enneads will fall before them, and a man for each of their weapons, and a man for each of themselves.
Three enneads will fall by them in their first conflict, and among them they will share a man's triumph.
Nine enneads fall by Cormac and nine enneads by his people, and a man for each weapon and a man for each man.
His arrangement by enneads, or series of nine, is fanciful, and wanting in inner principle.
Plotinus himself lived and taught in Rome for the last twenty-five years of his life, and there wrote his Enneads in Greek.
His “Enneads,” even as edited by his patient Boswell, Porphyry, are not very light subjects of study.