Faustian bargain (idea)

Faustus

Then there's enough for a thousand souls.
Here, Mephistopheles, receive this scroll,
A deed of gift of body and of soul;
But yet conditionally that thou perform
All articles prescribed between us both.

Mephistopheles

Faustus, I swear by hell and Lucifer
To effect all promises between us made.

Faustus

Then hear me read them.
"On these conditions following:
First, that Faustus may be a spirit in form and substance.
Secondly, that Mephistopheles shall be his servant, and at his command.
Thirdly, that Mephistopheles shall do for him and bring him whatsoever he requireth.
Fourthly, that he shall be in his chamber or house invisible.
Lastly that he shall appear to the said John Faustus, at all times, in what form or shape soever he please.
I, John Faustus, of Wittenberg, Doctor, by these presents do give both body and soul to Lucifer, Prince of the East, and his minister, Mephistopeles; and futhermore grant unto them, that twenty-four years being expired, the articles above written inviolate, full power to fetch or carry the said John Faustus, body and soul, flesh, blood, or goods, into their habitation wheresoever. By me,

John Faustus."

Mephistopheles

Speak, Faustus, do you deliver this as your deed?

Faustus

Ay, take it, and the Devil give thee good on't.

This is the Faustian bargain according to Christopher Marlowe.