Plotinus Enneads Ii

PLOTINUS Ennead II.5 On What Is Potentially and What Actually

The term dunamis (potentiality) entered into the philosophical vocabulary with Plato, but it was with Aristotle that it acquired, together with energeia (actuality), the strong technical meaning that the two terms have maintained, with variations, throughout subsequent philosophical tradition. The significance of the notions of actuality and potentiality in Plotinus' thought can hardly be overstated. Throughout the Enneads, they are crucial to understanding the specific causality of intelligible realities and the relation of participation between intelligible and sensible realms. In Ennead II.5, Plotinus for the first time provides a systematic clarification of his peculiar use of these terms, through a sustained revision of Aristotle's own elaboration of the topic and of his terminology. The treatise discusses the different meanings of potentiality and actuality as well as the way each of them applies or does not apply to the sensible realm, to the intelligible realm, and to matter.

Plotinus: Enneads II. 1-9

Plotinus' Cosmology

In Ennead II.1 (40) Plotinus is primarily concerned to argue for the everlastingness of the universe, the heavens, and the heavenly bodies as individual substances. Here he must grapple both with the philosophical issue of personal identity through time and with the rich tradition of cosmology which pitted the Platonists against the Aristotelians and Stoics. What results is a historically informed cosmological sketch explaining the constitution of the heavens as well as sublunar and celestial motion. This book contains an extensive introduction aimed at providing the necessary background in Platonic, Aristotelian, and Stoic cosmology, the text itself, and a line-by-line commentary designed to elucidate its philosophical, philological and historical details.