Were such things here as we do speak about?
Or have we eaten on the insane root
That takes the reason prisoner?

We are not ourselves When nature, being oppressed, commands the mind To suffer with the body.

Madam, I swear I use no art at all. That he is mad, 'tis true: 'tis true 'tis pity, And pity 'tis 'tis true--a foolish figure.

It shall be so. Madness in great ones must not unwatched go.

Though this be madness, yet there is method in't.

The prince of darkness is a gentleman!