Destiny for Macbeth?

"Destiny is not a matter of chance, it is a matter of choice; it is not a thing to be waited for, it is a thing to be achieved." (William Jennings Bryan) Are we in control of our own destiny, our own fate, or are our lives really already planned and mapped out for us? Does Macbeth willfully choose evil in order to achieve his "destiny"? Or, is his "destiny" doomed by the witches' prophecies? …

…threatened by Banquo's destiny of being father to a whole line of kings, that he had Banquo murdered. As the play progressed, Macbeth learned that his destiny ultimately forms his future. All Macbeth's actions were choices to attain his destiny, but they were nonetheless choices of his own free will. Macbeth was destined to become king; however, destiny doesn't come along with the choices made to achieve that destiny. Macbeth knew what he was doing.