Stay, you imperfect speakers. Tell me more.

Macbeth
Stay, you imperfect speakers. Tell me more.
By Sinel’s death I know I am Thane of Glamis.
But how of Cawdor? The Thane of Cawdor lives
A prosperous gentleman, and to be king
Stands not within the prospect of belief,
No more than to be Cawdor. Say from whence
You owe this strange intelligence or why
Upon this blasted heath you stop our way
With such prophetic greeting. Speak, I charge you.
 Witches vanish.

The earth hath bubbles, as the water has,
And these are of them. Whither are they vanished?

Banquo
The earth hath bubbles, as the water has,
And these are of them. Whither are they vanished?
Macbeth
Into the air, and what seemed corporal melted,
As breath into the wind. Would they had stayed!
Banquo
Were such things here as we do speak about?
Or have we eaten on the insane root
That takes the reason prisoner?
Macbeth
Your children shall be kings.
Banquo
You shall be king.
Macbeth
And Thane of Cawdor too. Went it not so?
Banquo
To th’ selfsame tune and words.