μήτε δίκην δικάσῃς πρίν ἀμφοῖν μῦθον ἀκούσῃς → do not give your judgement until you have heard a speech on both sides
P. and V. ἀπόπληκτος, μανιώδης, P. ἔκφρων, Ar. and P. παράπληξ, μανικός, V. ἐμμανής (Plato also but rare P.), Ar. and V. παραπεπληγμένος; see mad.