Plutarch of Athens (Greek: Πλούταρχος ὁ Ἀθηναῖος; c. 350 – 430 AD) was a Greek philosopher and Neoplatonist who taught in Athens at the beginning of the 5th century. He reestablished the Platonic Academy there and became its leader. He wrote commentaries on Aristotle and Plato, emphasizing the doctrines which they had in common. Source: Wikipedia (en)