Books by Porphyry

Porphyry (AD 232/3 - C.305) is of crucial importance for the history of Aristotelian studies. Born in Tyre and a student of Plotinus in Rome, he later defended Aristotle's Categories against Plotinus, arguing that they were entirely compatible with Platonism. His intervention was decisive: the Categories became a basic textbook of logic for all subsequent Neoplatonist teaching and influenced both the Arabic and Western Traditions. Boethius drew heavily on Porphyry's treatment. The full commentary is lost, but a shorter version survives and is translated here.

The ancient Greek commentators on Aristotle constitute a large body of Greek philosophical writings, not previously translated into European languages. This volume includes notes and indexes and forms part of a series to fill this gap.

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?