1. Act 1 scene i - 'Fair is foul': In this famous opening scene, we see images of turbulence and confusion.
2. Act 1 scene ii - 'Disdaining Fortune': A soldier describes how Scotland has been rescued from disaster in battle by the 'worthy' and 'valiant' Macbeth.
3. Act 1 scene iii - 'supernatural soliciting': Macbeth's first soliloquy, in which he shows his fascination with the 'imperial theme'.
4. Act 1 scene vii - 'If we should fail?': This is the moment when Macbeth is 'lost', fatally weakening on the idea of murdering the King.
5. Act 2 scene ii - 'Consider it not so deeply': Macbeth returns to Lady Macbeth after the murder, and she tries to stop him obsessing over what he has seen.
6. Act 2 scene ii - 'A little water clears us of this deed': Macbeth is horrified by the sight of the blood on his hands. Lady Macbeth says that 'a little water clears us of this deed'.
7. Act 2 scene iii - 'expectation of plenty': The Porter's language hits on some of the deeper themes of the play.
8. Act 2 scene iii - 'the wine of life is drawn': Macbeth expresses in public his horror at the sight of Duncan's body.
9. Act 2 scene iv - ''Tis unnatural': Ross and an Old Man talk about the disturbing things happening in the natural world following Duncan's murder.
10. Act 3 scene i - 'To be thus is nothing': the beginning of Macbeth's soliloquy in III i, in which he expresses his fear of Banquo and of 'nothingness', and continues his precipitous moral decline.
11. Act 3 scene i - 'The worst rank of manhood': Macbeth meets two killers who will murder Banquo. Perhaps there are some similarities between these low-life characters and the new King...
12. Act 3 scene ii - 'restless ecstasy': While Macbeth plans to have Banquo murdered, we see his sense of the nightmarish 'torture of the mind' from which he is suffering.
13. Act 3 scene iv - 'cabined, cribbed, confined': Macbeth finds out that Fleance escaped the murderers, and he expressses his sense of being 'bound in to saucy doubts and fears.'
14. Act 3 scene iv- 'blood hath been shed': Macbeth expresses his horror at how the dead are returning from the grave, and nothing is at 'an end' any more.
15. Act 3 scene iv - 'strange things': Macbeth decides to seek out the 'weird sisters' and to learn more, as well as to do more.
16. Act 4 scene i - 'be it thought and done': Macbeth decides to slaughter Macduff's family, and not to 'think' any more, but to act without conscience or rationality.
17. Act 5 scene i - 'unnatural deeds': In the sleepwalking scene, the Doctor expresses one of the central ideas of the play.
18. Act 5 scene ii - 'dwarfish thief': Caithness and Angus give us images of Macbeth as he approaches his inevitable doom.
19. Act 5 scene iii - 'cure her of that': Macbeth reveals perhaps more than he planned as he asks the Doctor to 'cure' Lady Macbeth of her 'rooted sorrow'.
20. Act 5 scene v - 'sound and fury': Macbeth expresses his final philosophical understanding of the meaninglessness of life.