Macbeth’s Great Folly In the play Macbeth, written by William Shakespeare, Macbeth felt nervous about killing King Duncan. Macbeth knew that if King Duncan had ever died that he himself would be the first person to become the new king. Even though Macbeth likes king Duncan for his good personality and honesty, Lady Macbeth is serious about killing Duncan because she wants Macbeth to become the king. At first, Macbeth is planning on truly following through with the plan, but then shortly he starts to have second thoughts and is nervous of the consequences he might face after the fact. Lady Macbeth then proceeds to call him a coward for not being a man of his word and doing what he said he would. So, after a long consideration, Macbeth’s temptations