Do you agree with Lady Macbeth that "This is the air-drawn dagger, which you said, led you to Duncan?" (From William Shakespeare's Macbeth)
In Act III, Scene iv of Shakespeare's tragic play Macbeth, Lady Macbeth (after witnessing Macbeth's breakdown) states the following:
O proper stuff!
This is the very painting of your fear:
This is the air-drawn dagger which, you said,
Led you to Duncan. O these flaws and starts,
Impostors to true fear, would well become
A woman's story at a winter's fire,
Authorized by her grandam. Shame itself!
Why do you make such faces? When all's done,
You look but on a stool.
What Lady Macbeth is stating is that Macbeth is acting like a fool and drawing attention to himself. Her referral to being a woman is another attempt to call Macbeth's manhood into question. She state that a woman doing what Macbeth is doing could be justified, but a man doing it is unacceptable.
As for agreeing with what Lady Macbeth states, I would not necessarily agree with her. She knows that Macbeth is having "issues" with what he has done. His mentality has been called into question by her in the past; therefore, his mindset is not something which she is unfamiliar with. Instead, what I would suggest is that she is pointing out the fact that Macbeth, on the night of his crowing as king, is not making a very good first impression on his followers.
Lady Macbeth is certainly seeing a pattern though. The dagger which Macbeth claimed to have seen, and now the ghost of Banquo, is making Macbeth look like a fool ("You look but on a stool").