ἢ λέγε τι σιγῆς κρεῖττον ἢ σιγὴν ἔχε → either say something better than silence or keep silence (Menander)
adj.
Quick at learning: P. εὐμαθής. Wise, clever: P. and V. σοφός, συνετός, ἔννους, ἔμφρων, Ar. and P. φρόνιμος. Of things: Ar. and P. φρόνιμος.
Intelligenz: intelligent, Intelligenz, s. einsichtsvoll, Einsicht.