Act Five Scene Three: MACBETH: "The mind I sway by, and the heart I bear,/Shall never sag with doubt, nor shake with fear."
Interpretation: Macbeth has come full circle, and has returned to his former warrior self - he is displaying typical characteristics of a powerful leader once more. Although he is now full of evil intentions, his spirit is as strong as ever.
Analysis: In previous acts, Macbeth was riddled with "doubt" and "fear"- now the word "never" is positioned before it, showing he has finally regained control over his own behaviour. He is again in full control, as shown by the reference to both "mind", suggesting his thoughts, and "heart", emphasising his emotions. "Sag" and "shake" both suggest weak body movements, something Macbeth explicitly rejects.