To every ambition there is a strong will, a strong desire to make it come true. In the play   Macbeth both Macbeth and Lady Macbeth have a similar greed to get the throne and the power under their control. The difference among them lies in the fact that Macbeth at first wasn't sure to accomplish his ambition, but it was Lady Macbeth who blew air to his internal burning fire. She was the one who encouraged Macbeth to kill King Duncan and seize the crown. Later on in the play Lady Macbeth repented on her guilt while Macbeth who wasn't intrigued to kill Duncan, fell for the throne due to his greed. With consistent ease he embarked the further atrocities of killing his enemies who had come between him and his throne to save Scotland from his evil rule. His greed had no bound and the fear of his extermination from his throne had made this greed to grow further more. From this we learn how greed for power creates endless destruction. Macbeth's evilness in getting what he wanted actually made him a criminal. Likely if greed (as an ingredient) is added to any desire or ambition, the product results in one's self decline. The play gives us a moral lesson, a true fact that power and money equivalently can reduce love in blood relations. Greed to get better after good and best for future can be the right key for your self destruction, which is similar to what is portrayed in Macbeth.