Abstract

Chapter six examines the relationship between Plotinus’ concepts of number and multiplicity, and Porphyry’s organization of the Enneads. Porphyry’s thematical arrangement of the Enneads is traditionally considered to be more detrimental than beneficial for understanding Plotinus’ thought. The chapter re-examines this issue and discovers that Porphyry fuses Plotinus’ philosophy with Neopythagorean numerical symbolism to reveal the central organizing theme of Plotinus’ universe. In the Neopythagorean tradition, the number six is considered to be the first perfect number and the hexad is identified as the number of Soul, while the completion of the universe is represented by the number nine, which is “called ‘ennead’ as if it were the ‘henad’ of everything within it, by derivation from the ‘one’.” The individual treatises are consequently grouped in nines, because they enclose the numerical essence of the universe from “henad” to “ennead.” Porphyry’s arrangement of the Enneads encrypts numerically the perfect unity of Plotinus’ universe, for which Ennead VI.6 provides the conceptual blueprint.