1. The raven himself is hoarse that croaks the fatal entrance of Duncan
Under my battlements. Come, you spirits that tend on mortal thoughts, unsex me here, and fill me from the crown to the toe top-full of direst cruelty. Make thick my blood,
Stop up th’access and passage to remorse,
That no compunctious visiting’s of nature
Shake my fell purpose, nor keep peace between
Th’ effect and it. Come to my woman’s breasts, and take my milk for gall, you murd’ring ministers, wherever in your sightless substances you wait on nature’s mischief. Come, thick night, and pall thee in the dunnest smoke of hell,
That my keen knife see not the wound it makes,
Nor heaven peep through the blanket of the dark,
To cry ‘Hold, hold!’

Lady Macbeth speaks these words in Act 1, scene 5, lines 36–52, as she awaits the arrival of King Duncan at her castle. We have previously seen Macbeth’s uncertainty about whether he should take the crown by killing Duncan. Lady Macbeth is clearly willing to do whatever is necessary to seize the throne. Her strength of purpose is contrasted with her husband’s tendency to waver. This speech shows the audience that Lady Macbeth is the real steel behind Macbeth and that her ambition will be strong enough to drive her husband forward.

2. If it were done when ’tis done, then ’twere well
It were done quickly. If th’assassination
Could trammel up the consequence, and catch
With his surcease success: that but this blow
Might be the be-all and the end-all, here,
But here upon this bank and shoal of time,
We’d jump the life to come. But in these cases
We still have judgement here, that we but teach
Bloody instructions which, being taught, return
To plague th’inventor. This even-handed justice
Commends th’ingredience of our poisoned chalice
To our own lips. He’s here in double trust:
First, as I am his kinsman and his subject,
Strong both against the deed; then, as his host,
Who should against his murderer shut the door,
Not bear