ἢ λέγε τι σιγῆς κρεῖττον ἢ σιγὴν ἔχε → either say something better than silence or keep silence (Menander)
subs.
P. and V. αἴνιγμα, τό, αἰνιγμός, ὁ (Plat.). Speak in enigmas, v.: P. and V. αἰνίσσεσθαι.