Answer:Because we first hear of Macbeth in the wounded captain’s account of his battlefield valor, our initial impression is of a brave and capable warrior. This perspective is complicated, however, once we see Macbeth interact with the three witches. We realize that his physical courage is joined by a consuming ambition and a tendency to self-doubt—the prediction that he will be king brings him joy, but it also creates inner turmoil. These three attributes—bravery, ambition, and self-doubt—struggle for mastery of Macbeth throughout the play. Shakespeare uses Macbeth to show the terrible effects that ambition and guilt can have on a man who lacks strength of character. We may classify Macbeth as irrevocably evil, but his weak character separates him from Shakespeare’s great villains—Iago in Othello, Richard III in Richard III, Edmund in King Lear—who are all strong enough to conquer guilt and self-doubt. Macbeth, great warrior though he is, is ill equipped for the psychic consequences of crime.
