ἢ λέγε τι σιγῆς κρεῖττον ἢ σιγὴν ἔχε → either say something better than silence or keep silence (Menander)
simulac ADV :: as soon as, the moment that
sĭmŭlac: v. simul, VIII.
sĭmŭlac,¹⁰ sĭmŭlatque, v. simul.