“My dear M. de Villefort,” replied the doctor, “my first duty is to humanity. I would have saved Madame de Saint-Méran, if science could have done it; but she is dead and my duty regards the living. Let us bury this terrible secret in the deepest recesses of our hearts; I am willing, if anyone should suspect this, that my silence on the subject should be imputed to my ignorance. Meanwhile, sir, watch always—watch carefully, for perhaps the evil may not stop here. And when you have found the culprit, if you find him, I will say to you, ‘You are a magistrate, do as you will!’”