μήτε δίκην δικάσῃς πρίν ἀμφοῖν μῦθον ἀκούσῃς → do not give your judgement until you have heard a speech on both sides
(see also: προσοικοδομέω) build on to
adstruere, to build to, erect besides, 2.76.3, 6.54.7.