The Three Witches represent darkness, chaos, and conflict, while their role is as agents and witnesses. Their presence communicates treason and impending doom. During Shakespeare's day, witches were seen as worse than rebels, "the most notorious traitor and rebel that can be." They were not only political traitors, but also spiritual traitors as well. Much of the confusion that springs from them comes from their ability to straddle the play's borders between reality and the supernatural. They are so deeply entrenched in both worlds that it is unclear whether they control fate, or whether they are merely its agents. They defy logic, not being subject to the rules of the real world.
None, however, can bring Macbeth down. Finally, Macduff meets him on the field of battle. Macbeth laughs hollowly, telling him of the witches' prophecy: no man born of a woman may slay him. As Macduff retorts, he was "from my mother's womb untimely ripp'd," meaning he was delivered by a Caesarian section (and hence, not technically born of a woman). Grimly, Macbeth presses on. The play ends with the death of Macbeth; Macduff greets the others bearing Macbeth's head. Malcolm is crowned King of Scotland, restoring his father's bloodline to the throne.
I know! How about some favorite lines to woo the maidens and help us avoid love’s labour’s lost?
Hear my soul speak: / The very instant that I saw you, did / my heart fly at your service.
Doubt that the stars are fire, / Doubt that the sun doth move, / Doubt truth to be a liar, / But never doubt I love.
For where thou art, there is the world itself, and where thou art not, desolation.
This bud of love by summer’s ripening breath, / May prove a beauteous flower when next we meet.
You have witchcraft in your lips.