μήτε δίκην δικάσῃς πρίν ἀμφοῖν μῦθον ἀκούσῃς → do not give your judgement until you have heard a speech on both sides
spontaneously: P. ἀπὸ τοῦ αὐτομάτου.
by nature: P. and V. φύσει.
divine instinctively, verb transitive: P. and V. μαντεύεσθαι (acc.).