Fair is foul, and foul is fair' (1,1)
- refers to the deceptive nature of appearances and the blurred lines between good and evil.
- It reflects the theme of the supernatural by highlighting the presence of ambiguity and the moral uncertainty in the world of the play.
- The oxymoronic repetition of the words "fair" and "foul" create a sense of duality and inversion, emphasising a reality is distorted by supernatural forces