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.
The Enneads of Plotinus are the fundamental documents of Neoplatonism.
His writings were arranged by his disciple, Porphyry, and edited in six Enneads.
Nine enneads will fall before them, and a man for each of their weapons, and ...