μήτε δίκην δικάσῃς πρίν ἀμφοῖν μῦθον ἀκούσῃς → do not give your judgement until you have heard a speech on both sides
praeceptīvē: adv., v. praeceptivus.
præceptīvē (præceptivus), impérative- ment : Tert. Marc. 5, 10.