Aristotle classified the things in the world into ten categories: substance, quantity, quality, relative, etc. Plotinus, the founder of Neoplatonism, attacked the classification, accepting only these first four categories, rejecting the other six, and adding one of this own: change. He preferred Plato's classification into five kinds which included change.
In this part of his commentary, Simplicius records the controversy on the six categories which Plotinus rejected: acting, being acted upon, being in a position, when, where, and having on. Plotinus' pupil and editor, Porphyry, defended...

This volume completes the translation in this series of Quaestiones attributed to Alexander of Aphrodisias, the leading ancient commentator on Aristotle. The Quaestiones are concerned with physics and metaphysics, psychology and divine providence. They exemplify the process whereby Aristotle's thought came to be organised into 'Aristotelianism' and show how interpretations were influenced by doctrines of Hellenistic philosophy. Some, translated into Arabic and thence into Latin, played a part in the transmission of ancient Greek philosophy to the medieval world.
Those...

In this, one of the most original ancient texts on sense perception, Philoponus, the sixth century AD commentator on Aristotle, considers how far perceptual processes are incorporeal. Colour affects us in the same way as light which, passing through a stained glass window, affects the air, but colours only the masonry beyond. Sounds and smells are somewhat more physical, travelling most of the way to us with a moving block of air, but not quite all the way. Only the organ of touch takes on the tangible qualities perceived, because reception of sensible qualities in perception is cognitive,...

Until the launch of this series over ten 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. Over 30 volumes have now appeared in the series, which is planned in some 60 volumes altogether. This text by Philoponus, the sixth-century commentator on Aristotle, is notable for its very informative Introduction to Psychology, which tells us the views of Philoponus, of his teacher and of later Neoplatonists on...

A new translation of Aristotle's classic work on the natural sciences.

Alexander of Aphrodisias - the leading ancient commentator on Aristotle - offers interpretations to do with moral virtue, the criteria for judging actions voluntary, and so on. Translation of text with commentary and notes.