Until the launch of this series over fifteen years ago, the 15,000 volumes of the ancient Greek commentators on Aristotle, written mainly between 200 and 600 AD, constituted the largest corpus of extant Greek philosophical writings not translated into English or other European languages. This text by Philoponus rejects accounts of soul, or as we would say of mind, which define it as moving, as cognitive, or in physical terms. Chapter 3 considers Aristotle's attack on the idea that the soul is in motion. This was an attack partly on his teacher, Plato, since Plato defines the soul as...

Until the launch of this series over fifteen years ago, the 15,000 volumes of the ancient Greek commentators on Aristotle, written mainly between 200 and 600 AD, constituted the largest corpus of extant Greek philosophical writings not translated into English or other European languages. In this, the first half of Philoponus' analysis of book one of Aristotle's Physics, the principal themes are metaphysical. Aristotle's opening chapter in the Physics is an abstract reflection on methodology for the investigation of nature, or 'physics'. Aristotle suggests that one must proceed...

Until the launch of this series in 1985, the 15,000 volumes of the ancient Greek commentators on Aristotle, written mainly between 200 and 600 AD, constituted the largest corpus of extant Greek philosophical writings not translated into English or other European languages.
Syrianus, originally from Alexandria, moved to Athens and became the head of the Academy there after the death of Plutarch of Athens. Syrianus attacked Aristotle in his commentary on Books 13 and 14 of the Metaphysics, just as his pupil Proclus was to do later in his commentaries on Plato. This is because in...

Until the launch of this series nearly twenty years ago, the 15,000 volumes of the ancient Greek commentators on Aristotle, written mainly between 200 and 600 AD, constituted the largest corpus of extant Greek philosophical writings not translated into English or other European languages. Aspasius' commentary on the Nicomachean Ethics, of which six books have come down to us, is the oldest surviving Greek commentary on any of Aristotle's works, dating to the middle of the second century AD. It offers precious insight into the thinking and pedagogical methods of the Peripatetic school...

Simplicius' commentary on Aristotle's Categories is the most comprehensive philosophical critique of the work ever written, representing 600 years of criticism. In his Categories, Aristotle divides what exists in the sensible world into ten categories of Substance, Quantity, Relative, Quality and so on.. Simplicius starts with a survey of previous commentators, and an introductory set of questions about Aristotle's philosophy and about the Categories in particular. The commentator, he says, needs to present Plato and Aristotle as in harmony on most things. Why are precisely ten categories...

'The universe is, as it were, one machine, wherein the celestial spheres are analogous to the interlocking wheels and the particular beings are like the things moved by the wheels' and all events are determined by an inescapable necessity. To speak of free choice or self determination is only an illusion we human beings cherish. Thus writes Theodore the engineer to his old friend Proclus. Proclus' reply is one of the most remarkable discussions on fate, providence and free choice in Late Antiquity. It continues a long debate that had started with the first polemics of the Platonists against...

The Enchiridion or Handbook of the first-century AD Stoic Epictetus was used as an ethical treatise both in Christian monasteries and by the sixth-century pagan Neoplatonist Simplicius. Simplicius chose it for beginners, rather than Aristotle's Ethics, because it presupposed no knowledge of logic. We thus get a fascinating chance to see how a pagan Neoplatonist transformed Stoic ideas. The text was relevant to Simplicius because he too, like Epictetus, was teaching beginners how to take the first steps towards eradicating emotion, although he is unlike Epictetus in...

Porphyry's On Abstinence from Killing Animals is one of the most interesting books from Greek antiquity for both philosophers and historians. In it, Porphyry relates the arguments for eating or sacrificing animals and then goes on to argue that an understanding of humans and gods shows such sacrifice to be inappropriate, that an understanding of animals shows it to be unjust, and that a knowledge of non-Greeks shows it to be unnecessary.

There are no Neoplatonist commentaries on Aristotle's Ethics from the period AD 250-600. Thus, although this work is not a...

This book is about determinisism. It contains the two most important commentaries on the determinists' sea battle argument, and on other deterministic arguments besides. It includes the earliest full exposition of the Reaper argument for determinism, and a discussion of whether there can be changeless knowledge of the passage of time. It also contains the two fullest expositions of the idea that it is not truth, but only definite truth, that would imply determinism.
Ammonius and Boethius both wrote commentaries on Aristotle's On Interpretation and on its ninth chapter, where...

The commentary of Alexander of Aphrodisias on Aristotle's Prior Analytics 1.8-22 is a very important text, being the main ancient commentary with chapters in which Aristotle invented modal logic - the logic of propositions about what is necessary or contingent (possible). The first volume of Ian Mueller's translation covered chapters 1.8-13, and reached as far as the chapter in which Aristotle discussed the notion of contingency. In this, the second volume, the 'greatest' commentator, Alexander, concludes his discussion of Aristotle's modal logic.
Aristotle also invented the...