Conscience

   Conscience is not given to a man to instruct him in the right, but to prompt him to choose the right instead of the wrong when he is instructed as to what is right. It tells a man that he ought to do right, but does not tell him what is right. And if a man has made up his mind that a certain wrong course is the right one, the more he follows his conscience the more hopeless he is as a wrongdoer. --Henry Clay Trumbull