act 1 scene 3, the three witches give Banquo and Macbeth their prophecies, where Macbeth will be king and Banqou's kids will wear the crown.
speak, if you can; what are you? (47b)
we will speak further. ( 70a)
act 1 scene 5, lady Macbeth talks to Macbeth about killing the king.
Only look up clear;To alter favour ever is to fear. Leave all the rest to me. (70b, 71, 72)
act 3 scene 1, Macbeth is planning his murder of Banquo.
So is he mine — and in such bloody distance,That every minute of his being thrustsAgainst my near'st of life; and though I couldWith barefaced power sweep him from my sightAnd bid my will avouch it. (115, 116, 117, 118)
act 3 scene 3, the three murderers kill Banquo while his son escapes.
O, treachery. Fly, good Fleance, fly, fly, fly – thou mayst revenge. O slave. (19, 20, 21)
act 5 scene 1, Gentlewoman and doctor watch as Lady Macbeth sleepwalks and talks, going fully insane.
...yet who would have thought the old man to have had so much blood in him? (35, 36)
act 5 scene 7, as war goes on in front of the castle, Macbeth enters and speaks to young Siward before killing him, then being killed.
my name's Macbeth (7)
The devil himself could not pronounce a titleMore hateful to mine ear. (8)