act 3

• “To be thus is nothing, But to be safely thus.” (act 3, scene 1)

  Macbeth’s obsession with security reveals his view of kingship as something fragile, needing to be protected through treachery.
• “Our fears in Banquo stick deep, and in his royalty of nature reigns that which would be feared.” (act 3, scene 1)

  Macbeth fears Banquo’s noble nature and the prophecy, showing his insecurity about his legitimacy as king.
• “We have scorched the snake, not killed it.” (act 3, scene 2)

  Macbeth’s metaphor illustrates his belief that his murderous acts are only temporary solutions, not the end of threats to his kingship.
• “It is concluded. Banquo, thy soul’s flight, If it find heaven, must find it out tonight.” (act 3 scene 1)

  Macbeth’s sinister resolve to murder Banquo, disregarding moral constraints, reflects a departure from rightful kingship based on virtue.
• “There the grown serpent lies; the worm that’s fled Hath nature that in time will venom breed, No teeth for the present.” (act 3 scene 4)

  Macbeth sees Banquo’s threat as a "serpent," emphasizing his view of kingship as a dangerous, hostile territory that must be eradicated through violence.
• “Thou canst not say I did it: never shake Thy gory locks at me.” (act 3 scene 4)

  Macbeth’s hallucination reveals his inner guilt and the instability of his kingship, which lacks moral legitimacy.
• “The time has been, my senses would have cooled To hear a night-shriek.” (act 3 scene 4)

  Macbeth’s disturbed state underscores the unnaturalness of his kingship, contrasting with the divine authority associated with a rightful king.