Hierax (Ancient Greek: Ἱέραξ) was a Middle Platonist philosopher who flourished in approximately the 2nd century CE[1] whose work On Justice (Ancient Greek: Περὶ δικαιοσύνης) survives in eight separate excerpts made by Stobaeus. The surviving quotes focus on the ill effects that an unjust person brings upon themselves,[2] and attack the views of justice of the Stoic and Peripatetic schools.[3]