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Lady Macbeth did influence Macbeth’s decision to kill Duncan. She attacks his manhood and makes him feel like a coward. Furthermore she attacked his courage and pride when she said to him, “Art thou afeard/ To be the same in then own act and valor/As thou art in desire? Wouldst thou have that/ Which thou esteem’st the ornament of life,/ And live a coward in thine own esteem, / Letting ‘ I dare not’ wait upon ‘ I would’ “ (1.7). By questioning Macbeth’s desire for the crown she makes him feel like a coward which leads Macbeth to commit regicide. More importantly lady Macbeth questions his manhood when she tell him that, “ When you drust do it, then you were a man; And to be more than what you were, you would Be so much more the man” (1.7). She puts the thought in Macbeths head that by killing Duncan he will become more of a man. In conclusion Lady Macbeth did not kill Duncan but she challenged his manhood and his courage which motivated Macbeth to committee the crime.