I have thee not, and yet I see thee still. Art thou not, fatal vision, sensible To feeling as to sight? Or art thou but A dagger of the mind, a false creation, Proceeding from the heat-oppressèd brain?
(looking at his hands) This is a sorry sight.
A foolish thought, to say a sorry sight. Consider it not so deeply.
To know my deed, ’twere best not know myself.
Before killing King Duncan, Macbeth's evil mind and innocent mind were fighting. He is still struggling should he kill the king or not.
Lady Macbeth tries to comfort Macbeth in a demanding way. This shows that she is someone who like to control others.
Macbeth is regret to kill King Duncan. He heard some strange sound and he is very afraid.