Abstract

This is the second volume of a two-volume survey of the long and complicated controversy which took place in Antiquity over whether the world in Plato's Timaeus is generated or is eternal. In the first volume, Baltes traced this controversy from its beginnings in Aristotle's criticism of the Tim., through Middle Platonism, up to Neoplatonism, setting aside Proclus however for separate treatment which he now provides in this second volume. This arrangement seems inevitable, since Proclus's discussion of the issue, in his enormous Commentary on the Timaeus, is by far the fullest which has reached us from Antiquity and could hardly have been covered adequately in the first volume. Baltes's analysis of Proclus's treatment of the issue takes the form of a detailed commentary on those sections of Proclus's Commentary having to do with the some twenty-eight texts in the Timaeus which are relevant. Baltes attempts to sort out the train of thought in Proclus's comments, and brings out both Proclus's debt to Porphyry's Commentary on the Timaeus and Proclus's disagreements with Porphyry. In a Conclusion which is too brief to take full advantage of his commentary on Proclus, Baltes makes some useful points about the character of Proclus's Commentary, accounting convincingly for its repetitive quality and its mixing of philological with philosophical exegesis. As an appendix, Baltes gives in German translation eighteen arguments for the eternity of the world which derive from a lost work by Proclus and which are preserved in several Arabic Medieval translations and in John Philoponus's De aeternitate mundi. Baltes's two volumes constitute a valuable historical survey of a major and long-lived controversy in Greek philosophy and we might wish that, if he has the courage, he might complete his survey with a study of the controversy as it was renewed by Philoponus and Simplicius in a polemic less tied to the interpretation of the Timaeus and which anticipated, as G. Verbeke has suggested, the eternity of the world controversy in the Latin West in the thirteenth century.--Dominic O'Meara, Catholic University of America.