Ὑπὸ γὰρ λόγων ὁ νοῦς μετεωρίζεται ἐπαίρεταί τ' ἄνθρωπος → Borne up by words, the mind soars aloft, and we reach the heights (Aristophanes, Birds 1447f.)
firmly: P. and V. βεβαίως.
(grasp) tightly: P. and V. ἀπρίξ (Plato).
