150 – 215
Alexander of Aphrodisias (fl. c. 200 CE) was a Greek philosopher and head of the Peripatetic school in Athens, revered in antiquity as 'The Commentator' for his authoritative expositions of Aristotle. He defended a thoroughgoing naturalism, arguing that the soul is a functional property of the body rather than a separable substance, and produced influential treatments of fate, providence, and the problem of universals that shaped both late ancient and medieval philosophy.
Produced the most authoritative ancient commentaries on Aristotle's logical, physical, and metaphysical works, earning the title 'The Commentator'
Defended a materialist account of the soul as the body's functional disposition (De Anima), opposing Platonist dualism
Argued for a compatibilist theory of fate and moral responsibility in De Fato
Developed an influential realist position on universals as properties immanent in particulars
Appointed to the Athenian chair of Peripatetic philosophy under emperors Septimius Severus or Caracalla