"Character is fate." How far does Macbeth bring out his own destiny?

From the beginning of the play, when the audience is introduced to the character of Macbeth, they are also introduced to his weakness: his susceptibility to witchcraft. As the "noble" and "valiant" Macbeth transforms from a good Cawdor to an evil king. Shakespeare does not make it clear whether Macbeth freely chooses his path on his own or is controlled by the witches. It is evident from the opening scenes of the play that he …

…makes him susceptible to these women and the destiny they have in store for him. However, he determines his own destiny by building on his "black" side, rather than having the strength to abide by his conscience and overcome what he knows is unnatural and sincerely evil. He maybe be seen as a "noble soldier", but it is the weakness of his character that makes fate control him, rather than him controlling his own fate.