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The doctor says, "A great perturbation in nature, to receive at once the benefit of sleep, and do the effects of watching!". "Perturbation" means a disturbance, and to the mind of the doctor, the disturbance in nature is the fact of sleepwalking, where one can be asleep but act as if one is awake. The perturbation in nature does not cause the sleepwalking, it IS the sleepwalking.
Lady Macbeth and Macbeth. That sounds strange, but it is probably true. Next to them, Macduff gets very emotional when he discovers the murder, but seems to get over it quite quickly. But thoughts of Duncan haunt Macbeth who says in Act III Scene II "Duncan is in his grave. After life's fitful fever he sleeps well." And Lady Macbeth cannot shake off thoughts of Duncan either; in her sleepwalking scene she says, "But who would have thought the old man to have so much blood in him?"
The milk of human kindness.
Lady Macbeth says king Duncan resembles her father, so she encourages macbeth to murder him.
Lady Macbeth and Macbeth attempted to do the murder. They will be punished for what they attempted to do even if they didnt succeed
Lady Macbeth in Shakespeare's play Macbeth says, 'You know your own degrees'
Lady Macbeth echoes the words of the witches when she says "All hail, Macbeth, that shalt be king hereafter!". This echoes the witches' prophecy that Macbeth will become king.
We never really see any evident signs of flattery in the play Macbeth.
At the banquet when Macbeth begins acting unusual due to seeing Banquo's ghost, Lady Macbeth tells the guests to leave him alone. She says that he often has fits like this, ever since he was young, and says that they should just ignore him and he'll be fine.
She is trying to encourage Macbeth, who has been acting very strangely since killing Duncan. She says, "a little water clears us of this deed" implying that once the blood is washed off, they need never worry about the murder again. This is an ironic foreshadowing of the sleepwalking scene.
Lady Macbeth gives a signal to Macbeth to come and do the murder by ringing a bell. "The bell invites me", he says.
Macbeth does the things he does(like kill Duncan) because Macbeth is manipulated and coaxed by Lady Macbeth to do them. On his own, he would not have done so even though he was ambitious. Lady Macbeth, does the manipulating and all the cruel lines that she says are of her own accord. Nobody forces her, she choses to become evil while Macbeth is forced to become evil.