μήτε δίκην δικάσῃς πρίν ἀμφοῖν μῦθον ἀκούσῃς → do not give your judgement until you have heard a speech on both sides
P. and V. κολάζειν, νουθετεῖν, σωφρονίζειν, ῥυθμίζειν (Plato), V. ἁρμόζειν.