μηδενί δίκην δικάσῃς πρίν ἀμφοῖν μῦθον ἀκούσῃς → do not give your judgement on anything until you have heard a speech on both sides
ἀδύνατος, ἀκρατής, ἐνσινής, ἐκβόλιμος, ἀνίσχυρος