Hamlet is to Macbeth somewhat as the Ghost is to the Witches. Revenge, or ambition, in its inception may have a lofty, even a majestic countenance, but when it has "coupled hell" and become crime, it grows increasingly foul and sordid. We love and admire Hamlet so much at the beginning that we tend to forget that he is as hot-blooded as the earlier Macbeth when he kills Polonius and the King, cold-blooded as the later Macbeth or Iago when he sends Rosencrantz and Guildenstern to death.