μηδενί δίκην δικάσῃς πρίν ἀμφοῖν μῦθον ἀκούσῃς → do not give your judgement on anything until you have heard a speech on both sides
P. and V. ἥσυχος, ἡσυχαῖος, P. ἡσύχιος; see calm.