This magic quotation comes from one of literature’s most notorious magicians: Faust. There are many versions of the Faust story. My favorite has always been the play written by Christopher Marlowe. Here is the moment when Faust, dissatisfied with his degrees and the limits of Earthly higher education, decides to study magic:
“What doctrine call you this? Che sara, sara:
What will be, shall be! Divinity adieu!
These metaphysics of magicians,
And necromantic books are heavenly!”
. . . Christopher Marlowe . . . Doctor Faustus . . . c. 1594 . . .