The world of the play established in Act One of William Shakespeare's Macbeth prepares responders for the theme of ambition and its corrupting power. The hero's, greatest weakness is ambition and is central to the whole conception and meaning of the play .This key concern can be clearly seen through the motivation of the character Macbeth by the weird sisters and Lady Macbeth ,the relationship between characters and finally, the responders positioning.
             The initial introduction of Macbeth is a person of great integrity, without overwhelming ambition. As Act One progresses, and ambition starts to dominate Macbeth, the responder witnesses the metamorphosis of an honest man into a ruthless murderer. This transformation is motivated by the predictions of the weird sisters and also the concurrent ambition of his wife, Lady Macbeth.
             The weird sisters were able to manipulate and motivate Macbeth by turning his secret ambition into reality. Macbeth was initially led to evil by the weird sisters predictions. The concept of becoming King, laid forward by the weird sisters opened Macbeth's ideas to the possibility that his dream of becoming a king was very much possible. The weird sisters also predict that Banquo's family would be kings Thous shalt get kings, though thou be none?, this is a good example of the weird sisters provoking and tormenting the ambition and longing to be king, which Macbeth holds, as he then begins to envy Banquo. The foundations of Ambition and its corrupting powers is first constructed by the weird sisters in the first act . Without these key characters, a major and important idea which Shakespeare was attempting to portray to the responder would not be evident. The witches' are the individuals who plant the actual idea of killing Duncan into Macbeth's mind. Once he heard them predict that he was to become King, "All hail, Macbeth! That shalt be king hereafter!" , he did not want to wait any...