Commenting on the end of Aristotle On the Heavens Book 3, Simplicius examines Aristotle's criticisms of Plato's theory of elemental chemistry in the Timaeus. Plato makes the characteristics of the four elements depend on the shapes of component corpuscles and ultimately on the arrangement of the triangles which compose them. Simplicius preserves and criticizes the contributions made to the debate in lost works by two other major commentators, Alexander the Aristotelian, and Proclus the Platonist. In Book 4, Simplicius identifies fifteen objections by Aristotle to Plato's...

The subject of Aristotle's On the Heavens, Books 3-4, is the four elements of earth, air, fire and water, which exist below the heavens. Book 3, in chapters 1 to 7, frequently criticizes the Presocratic philosophers. Because of this Simplicius' commentary is one of our main sources of quotations of the Presocratics. Mueller's translation gains added importance from its enabling us to see the context which guided Simplicius' selection of Presocratic texts to quote. Simplicius also criticizes the lost commentary of the leading Aristotelian commentator, Alexander, and thereby gives us...

Concerning embryos, Porphyry takes an original view on issues that had been left undecided by his teacher Plotinus and earlier by the doctor Galen. What role is played in the development of the embryo by the souls or the natures of the father, of the mother, of the embryo, or of the whole world? Porphyry's detailed answer, in contrast to Aristotle's, gives a big role to the soul and to the nature of the mother, without, however, abandoning Aristotle's view that the mother supplies no seed. In the fragments of "On What is in Our Power," "Porphyry" discusses Plato's idea that we choose each...

In one of the most original books of late antiquity, Philoponus argues for the Christian view that matter can be created by God out of nothing. It needs no prior matter for its creation. At the same time, Philoponus transforms Aristotle's conception of prime matter as an incorporeal 'something - I know not what' that serves as the ultimate subject for receiving extension and qualities. On the contrary, says Philoponus, the ultimate subject is extension. It is three-dimensional extension with its exact dimensions and any qualities unspecified. Moreover, such extension is the defining...

Boethius (c. 480-c. 525) wrote his highly influential second commentary on Aristotle's On Interpretation in Latin, but using the style of the Greek commentaries on Aristotle. It was part of his project to bring knowledge of Plato and Aristotle to the Latin-speaking world of his fellow Christians. The project was cruelly interrupted by his execution at the age of about 45, leaving the Latin world under-informed about Greek Philosophy for 700 years. Boethius reveals to us how On Interpretation was understood not only by himself, but also by some of the best Greek interpreters, especially...

Boethius (c. 480-c. 525) was a Christian philosopher and author of many translations and works of philosophy, most famously the Consolations of Philosophy which were probably written when he was under house arrest, having been accused of treason by King Theoderic the Great. He was subsequently executed. On Interpretation is the second part of the Organon, as Aristotle's collected works on logic are known; it deals comprehensively and systematically with the relationship between logic and language. In his first six chapters, Aristotle defines name, verb, sentence,...

This is the first complete translation into a modern language of the first part of the pagan Neoplatonist Simplicius of Cilicia's commentary on Aristotle's argument that the world neither came to be nor will perish. It is notable and unusual among the commentaries because Simplicius includes in his discussion lengthy representations of the Christian John Philoponus' criticisms of Aristotle along with his own, frequently heavily sarcastic, responses.

Themistius' treatment of Books 1-3 of Aristotle's Physics presents central features of Aristotle's thought about principles, causation, change and infinity. The tradition of synthesising and epitomising exegesis is here raised to a new level by the innovative method of paraphrase pioneered by Themistius. Taking selective, but telling, account of the earlier Peripatetic and Presocratic tradition, Themistius creates a framework that can still be profitably used in the study of Aristotle. This book will be of interest to all students of ancient and medieval philosophy, history and...

Written during a period of illness in 1935 1936, Yeats's play combines frank sexual content with bizarre imagery from the Indian and tribal Irish traditions. This edition provides a full transcription of the only extant manuscript version of the play.

Philoponus' On Aristotle Categories 1-5 discusses the nature of universals, preserving the views of Philoponus' teacher Ammonius, as well as presenting a Neoplatonist interpretation of Aristotle's Categories. Philoponus treats universals as concepts in the human mind produced by abstracting a form or nature from the material individual in which it has its being.

The work is important for its own philosophical discussion and for the insight it sheds on its sources. For considerable portions, On Aristotle Categories 1-5 resembles the wording of an earlier...