Who said "Insanity is the only sane response to an insane world."?

This quote is attributed to Yossarian.

Insanity is the only sane response to an insane world. - Yossarian

"Insanity is the only sane response to an insane world."

Yossarian

Character in Catch-22

Buy "Catch-22" on Amazon

"Yossarian's realization that the rules of war make no logical sense and exist only to benefit those in power"

"The absurdity of being forced to fly more missions due to one's competence"

"He was God, then."

"I'd like to see the catch written out."