Who said "To lose the ability to laugh is to lose humanity itself."?

This quote is attributed to Randle McMurphy.

To lose the ability to laugh is to lose humanity itself. - Randle McMurphy

"To lose the ability to laugh is to lose humanity itself."

Randle McMurphy Humor

Character in One Flew Over the Cuckoo's Nest

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"You boys are gonna get a chance to start a new life."

"I'd be happy to oblige you."

"I'm a gambling man."

"I need a little help."

"Never underestimate the power of a good laugh."

"Laughter is the best medicine."

"A good laugh is the best medicine."

"Laughter is contagious and wonderful."