“Thou wouldst be great/art without ambition, but without/the illness should attend it” is said by Lady Macbeth (I.v.16-18). In order to successfully commit Duncan’s murder, Lady Macbeth believes that her husband needs to gain ruthlessness. She is certain that Macbeth has the ambition to commit such a murderous deed, just not the wickedness. When Macbeth finally works up the ruthlessness to kill King Duncan he says, “I have no spur/to prick the sides of my intent, but only/vaulting ambition, which o’erleaps itself/and falls on the other” (I.vii.25-28). It is obvious here that Macbeth’s ambition is what is driving him to kill the king. Although Macbeth’s ambition is what is driving him to commit these murderous deeds, his ruthlessness has only just