ἢ λέγε τι σιγῆς κρεῖττον ἢ σιγὴν ἔχε → either say something better than silence or keep silence (Menander)
subs.
Answer: P. and V. ἀπόκρισις, ἡ (Eur., Frag.), P. ὑπόληψις. Defence: P. ἀπολογία, ἡ.