- Robert Sharples
ExtractAppointed public teacher of Aristotelian philosophy, probably though not certainly in Athens, at some time between 198 and 209 ce (his treatise On Fate being dedicated then to *Septimius Severus and *Caracalla); referred to by later writers as ‘the commentator’ on Aristotle. Commentaries on MetaphysicsΑ–Δ, Prior Analytics 1, Topics, Meteorologica, and De sensu survive; others are extensively quoted by later writers. The commentaries on Metaph.Ε–Ν and on Sophistical Refutations are, in their present form, spurious. In a number of short treatises (On the Soul, On Fate, On Mixture surviving in Greek; On Providence in Arabic translation) Alexander presents as Aristotelian his own developments of Aristotelian material. There are also numerous short discussions, some preserved in Greek (Quaestiones, Ethical Problems) and others only in Arabic, which seem linked with his teaching activity but whose authenticity is debatable. The Medical Puzzles and Physical Problems (ed.