You will not speak to him on any pretext--and--Richard, it will be at the peril of your life if you speak to her: open your lips--agitate yourself--and I'll not answer for the consequences."
Non gli parlerete mai, e voi, Riccardo, se pronunziate una sola parola, arrischiate la vita; se aprite bocca, se vi movete, non rispondo di nulla.