Hamlet, Rosencrantz, Guildenstern, Withnail and Marlowe have something to say

"I have of late, but wherefore I know not, lost all my mirth,

forgone all custom of exercises; and indeed,

it goes so heavily with my disposition that this goodly frame, the earth,

seems to me a sterile promontory...

As recited by Withnail and I.

Philosophy is odious and obscure;

Both law and physic are for petty wits;

Divinity is basest of the three,

Unpleasant, harsh, contemptible, and vile:

'Tis magic, magic, that hath ravish'd me.

(The Tragical History of Dr. Faustus)

Christopher Marlowe's summary