Τάς θύρας, τάς θύρας. Ἐν σοφία πρόσχωμεν. → the doors, the doors, in wisdom let us attend | The doors! The doors! In wisdom, let us be attentive!
assiduous: P. and V. λιπαρής (Plato), Ar. γλίσχρος.
industrious: P. φιλόπονος, φιλεργός.
obstinate: P. and V. αὐθάδης, V. ἔμπεδος.