Enneads

The Enneads (Greek: Ἐννεάδες), fully The Six Enneads, is the collection of writings of Plotinus, edited and compiled by his student Porphyry (c. AD 270). Plotinus was a student of Ammonius Saccas and they were founders of Neoplatonism. His work, through Augustine of Hippo, the Cappadocian Fathers, Pseudo-Dionysius the Areopagite and several subsequent Christian and Muslim thinkers, has greatly influenced Western and Near-Eastern thought.

Porphyry edited the writings of Plotinus in fifty-four treatises, which vary greatly in length and number of chapters, mostly because he split original texts and joined others together to match this very number. Then, he proceeded to set the fifty-four treatises in groups of nine (Greek. ennea) or Enneads. He also collected The Enneads into three volumes. The first volume contained the first three Enneads (I, II, III), the second volume has the Fourth (IV) and the Fifth (V) Enneads, and the last volume was devoted to the remaining Enneads. After correcting and naming each treatise, Porphyry wrote a biography of his master, Life of Plotinus, intended to be an Introduction to the Enneads.

Porphyry's edition does not follow the chronological order in which Enneads were written (see Chronological Listing below), but responds to a plan of study which leads the learner from subjects related to his own affairs to subjects concerning the uttermost principles of the universe.

Although not exclusively, Porphyry tells us (Cf. Life of Plotinus, chapters.24-26) that the First Ennead deals with Human or ethical topics, the Second and Third Enneads are mostly devoted to cosmological subjects or physical reality, the Fourth concerns the Soul, the Fifth knowledge and intelligible reality, and finally the Sixth covers Being and what is above it, the One or first principle of all.

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