In Macbeth, deception of others begins with deception of oneself. Discuss.

First performed around 1606 in the shadow of the Gunpowder Plot and its equivocating treason trials, Shakespeare's tragedy Macbeth examines the perilous intersection of internal delusion and external duplicity within the hierarchy of the Great Chain of Being.¹ While the play concedes that the deception of others is a necessary instrument for seizing illegitimate power, it affirms that such outward treachery invariably originates from a corrupted ambition that must first deceive itself.² Shakespeare consequently warns his Jacobean audience against the seductive illusions of prophecy and rationalisation, demonstrating that a kingdom's stability strictly depends upon piercing internal delusions before they can manifest as catastrophic external destruction.³

Shakespeare initially presents internal delusion as a product of supernatural temptation, yet reveals that this blindness rapidly facilitates the deliberate betrayal of others.⁴ Commencing amidst a bleak landscape with "thunder and lightning⁵" enveloping the skies of Scotland, the play's ominous opening foreshadows a world of moral instability, with the witches "hover[ing] through fog" embodying the equivocation that initiates mortal self-deception. This moral obscurity is mirrored in Macbeth's soliloquy, where his rationalisation that the witches' "truths…cannot be ill" exposes an emerging ambition willing to deceive itself, interpreting dark illusions as righteous justification for the pursuit of power. Coupled with the cryptic chant "Fair is foul, and foul is fair", the tragedy destabilises the natural order upheld by the Great Chain of Being, demonstrating how supernatural equivocation corrupts the judgement of mortals who willingly embrace illusion. This internal delusion soon translates into external treachery, as Lady Macbeth's persuasion converts Macbeth's compromised judgement into the deliberate concealment of corrupt intentions from the royal court.⁶ The corruption of the mind quickly demands an external mask, as the playwright exposes how duplicity becomes a calculated weapon through Lady Macbeth's instruction to "look like th' innocent flower but be the serpent under't⁷", disguising transgressive desire beneath an appearance of absolute virtue. Her manipulation of Macbeth's masculinity through the declaration that he should "be so much more the man" intensifies his conflict between "vaulting ambition" and "black and deep desires", compelling him to abandon conscience and project a false loyalty. So complete is Macbeth's moral deterioration that his hallucination of "a dagger of the mind" reveals the psychological consequences of his hubris, as the illusion he interprets as guidance directs him towards the ultimate treachery of regicide. Exposing the direct link between internal delusion and outward betrayal, Shakespeare asserts that the capacity to mislead others relies entirely upon a mind already consumed by falsehood.⁸