HIEROCLES, a Platonic philosopher of the fifth century, who taught at Alexandria, and was admired for his eloquence. He wrote seven books upon Providence and Fate, and dedicated them to Olympiodorus, who by his embassy did the Romans good service under the emperors Honorius and Theodosius the younger. But these books are now lost, and we only know them by the extracts in Photius. He wrote also a Commentary, which is still extant, upon the golden verses of Pythagoras.