This leads to Macbeth's moral corruption and downfall by the play's end.
It is clear Macbeth begins the play as a loyal friend and decent man.
Also, in regard to the witches, they merely predict what will happen, but never are we given the impression that the witches have actually INFLUENCED Macbeth to do anything.
So yes, the methods and ideas are from his own mind, but what do we see throughout Macbeth?
As a result of Macbeth's great loyalty and service to the crown, Duncan describes him as "valiant" and "worthy" (Act I, Scene 2, line 26).
In addition, Macbeth's wife, the person who would likely know him best, describes him as "full o' th' milk of human kindness" (Act I, Scene 5, line 17).The protagonist of the play is a person of significance.Macbeth is the Thane of Glamis and later of Cawdor as well.Instead, before his death, Macbeth finds himself without love, morally bankrupt, loathed by all, and with a name now synonymous with tyranny.Macbeth is a tragic hero and the beginning praise by Duncan about his military skills proves it.Once he gets what he wants, the crown, he realizes he is not happy. His wife is mad, and a lot of people are...well, dead. Macbeth soon loses his vigor in the speech in Act V Scene V. *sweatdrop*) where he speaks of how futile Life is. However his actions cause resentment amongst the audience, so instead of feeling sorrow at his demise as we would for Othello, Hamlet, or King Lear, we feel relief that such a tyrant is dead.But in truth, there was a story, there was a human inside this tyrant.His tragic flaw is that he allows his wife to manipulate his ambitious desires.His downfall is when he turns his back on honor and murders his king.Hecate says she will conjure up "artificial sprites" that will "draw him on to his confusion" (Act III, Scene 5, lines 27, 29); she intends to deceive Macbeth and lead him to his destruction.Had Macbeth never been subjected to the manipulations of the witches and his wife, he would likely spend his final years peacefully in Glamis or Cawdor.