Proclus: On the Existence of Evils (Ancient Commentators on Aristotle)

Proclus' On the Existence of Evils is not a commentary, but helps to compensate for the dearth of Neoplatonist ethical commentaries. The central question addressed in the work is: how can there be evil in a providential world? Neoplatonists agree that it cannot be caused by higher and worthier beings. Plotinus had said that evil is matter, which, unlike Aristotle, he collapsed into mere privation or lack, thus reducing its reality. He also protected higher causes from responsibility by saying that evil may result from a combination of goods. Proclus objects: evil is real, and not a privation. Rather, it is a parasite feeding off good. Parasites have no proper cause, and higher beings are thus vindicated as being the causes only of the good off which evil feeds.

Jan Opsomer is Assistant Professor of Philosophy, University of South Carolina, USA. Carlos Steel is Professor of Philosophy, Catholic University of Leuven, Belgium and was for 10 years President of the Higher Institute of Philosophy at Leuven