Ambition is a theme of interest in William Shakespeare's Macbeth. Ambition is the cause of most of Macbeth's problems; it leads to the killing of Duncan to take his place as King and friends to keep his secret safe, this ultimately leads to his own death, and the death of those who are innocent such as Banquo and MacDuff's son all for his gain. Macbeth's ambition could be compared to the ambition, or lack there of, of Banquo's, they are both told there futures by the three witches, but what they do with that information is very different. One shows great honor, and the other falls into the trap that great ambition often creates.
Macbeth was a great war hero, he had just put down an uprising in Scotland, as he was riding through the woods, with his friend, Banquo, and three witches appear before them and tell Macbeth that he will become Thane of Cowdor and then King of Scotland, and then to Banquo they tell him that he will not be King, but his children would. At first Macbeth shows some disbelief, but soon King Duncan makes Macbeth the Thane of Cowdor and Macbeth suddenly sees that the witches or "weird sisters" as they are sometimes called were telling the truth, and that it was in his future to become King. When he reveals this to Lady Macbeth they devise a plan to make Macbeth King more quickly by killing the current King, Duncan, it seems like the perfect crime, kill the king and set it up to make it look like the drunk guards did it. At first it goes well, instead of blaming the guard the King's two sons take the blame, because shortly after their fathers .
murder they flee to England and Ireland. Then things start to go wrong, first Banquo starts to suspect Macbeth, so Macbeth orders some assassins to kill Banquo and his son, they succeed in kill Banquo but his son escapes. .