Below are two of Lady Macbeth's speeches revealing how she hardens herself and contrasting her intensity of purpose with that of her wavering husband.
From Act I Scene 5
Lady Macbeth: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 the access and passage to remorse,
That no compunctious visitings of nature
Shake my fell purpose nor keep peace between
The effect and it! Come to my woman's breasts,
And take my milk for gall, your murthering 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!"
From Act I Scene 7
Lady Macbeth: What beast was’t, then,
That made you break this enterprise to me?
When you durst do it then you were a man;
And, to be more than what you were, you would
Be so much more the man. Nor time nor place
Did then adhere, and yet you would make both:
They have made themselves, and that their fitness now
Does unmake you. I have given suck, and know
How tender ’tis to love the babe that milks me:
I would, while it was smiling in my face,
Have pluck’d my nipple from his boneless gums,
And dash’d the brains out, had I so sworn as you
Have done to this