(
And let's not forget :
"I, JOHANN FAUSTUS, Dr.,
Do publicly declare with mine own hand in covenant & by power of these presents:
Whereas, mine own spiritual faculties having been exhaustively explored (including the gifts dispensed from above and graciously imparted to me), I still cannot comprehend;
And whereas, it being my wish to probe further into the matter, I do propose to speculate upon the Elementa;
And whereas mankind doth not teach such things;
Now therefore have I summoned the spirit who calleth himself Mephostophiles, a servant of the Hellish Prince in Orient, charged with informing and instructing me, and agreeing against a promissory instrument hereby transferred unto him to be subservient and obedient to me in all things.
I do promise him in return that, when I be fully sated of that which I desire of him, twenty-four years also being past, ended and expired, he may at such a time and in whatever manner or wise pleaseth him order, ordain, reign, rule and possess all that may be mine: body, property, flesh, blood, etc., herewith duly bound over in eternity and surrendered by covenant in mine own hand by authority and power of these presents, as well as of my mind, brain, intent, blood and will.
I do now defy all living beings, all the Heavenly Host and all mankind, and this must be.
In confirmation and contract whereof I have drawn out mine own blood for certification in lieu of a seal.
Doctor Faustus, Adept in the Elementa and in Church Doctrine."