Who said "Sometimes courage means saying no."?

This quote is attributed to Billy Bibbit.

Sometimes courage means saying no. - Billy Bibbit

"Sometimes courage means saying no."

Billy Bibbit Courage

Character in One Flew Over the Cuckoo's Nest

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"You're killing me."

"The only way to deal with an unfree world is to become so absolutely free that very existence of that world is a form of rebellion."

"I can't change what I am, but I can change how I act."

"I used to be somebody before I came to this place."

"Never let fear stop you from chasing your dreams."

"Courage is being afraid but doing it anyway."

"Sometimes you gotta do what you gotta do."

"Sometimes you have to be the monster to stop the monsters."