Simplicius on Aristotle's on the Heavens 1. 5-9 Book

Kahn offers the fragments of Heraclitus in solid translation, with an extensive and thoughtful commentary that both takes account of a great deal of secondary literature and provides the author's own valuable insights.

Kahn's approach to the interpretation of Heraclitus is orthodox but sensitive. He appreciates Heraclitus' intentional and artful prose style, including his use of ambiguity and wordplay to create a multiplicity of meanings in many of the fragments. He also gives proper attention to the resonance between fragments, often picking up an echo of a word or image from one fragment while interpreting another.

I enjoyed and learned much from Kahn's commentary, though I would rate his overall success at drawing a systematic Heraclitean worldview from the fragments a limited success at best. In this I think he is surpassed by Roman Dilcher and perhaps M.L. West as well. However, Kahn's command of the ancient material, the secondary literature (in several languages), and the history and culture of the ancient world in general, is truly impressive. His erudition serves the reader very, very well, opening up a wealth of other sources and making connections that only someone with such a mastery of classical and archaic literature can. I would also strongly advise interested folks to hunt down the hundreds of footnotes in his already weighty commentary, as they frequently provide a gem of a comment or an important bibliographical reference.

All in all, this book is essential for any serious study of Heraclitus. Its staying power is testament to Kahn's superb work. I personally feel deeply in Professor Kahn's debt for his fine volume, and I'm sure I'm not alone in this. My one and only complaint has to do with his decision to reorder the fragments and number them with Roman numerals...it's truly and deeply annoying, but if this is the only fly in the ointment, I suppose we can forgive Charles Kahn. A wonderful book.