The clever wife of the thane of Cowdor uses his ambition so as to lead him into unpure deads that are not suitable for such a noble man as Macbeth. Just before the arrival of Duncan in Cowdor, Lady Macbeth instructs her husband how to behave and what to do. She takes advantage of Macbeth's uncertainty about what he want to be and what he should be. The noble lady has turned her husband into a puppet which moves are determined by her mood and desires. At this point, Macbeth is divided into two parts – the ambitious thane who wants to be a king and the noble man who wants to keep his soul pure and his conscience clear. This internal conflict makes Macbeth weaker and more vulnerable to the mental attacks by Lady Macbeth. When Duncan finishes his dinner the thane of Cowdor and his wife have a dispute over is it right to kill the king. That's where Macbeth's weak mentality finally colapses and he is thoroughly controlled by his wife. That's where he forgets about his honour and duty to the king of Scotland. His ambition, constantly fueled by Lady Macbeth, overtrowhs Macbeth's more values. The overambitious thane should kill Duncan because that only chance. This idea was implanted by Lady Macbeth in her husbands brain. Macbeth's desire of power, money, honour, control over Scotland cleverly used by his