Who said "Life's a fight, but it's worth fightin' for."?

This quote is attributed to The Thing.

Life's a fight, but it's worth fightin' for. - The Thing

"Life's a fight, but it's worth fightin' for."

The Thing Life

"It's clobberin' time!"

"I'm a walking pile of rocks, but I got heart!"

"Somebody's gotta look out for the little guy."

"I ain't pretty, but I got brains."

"Life is meant to be lived with passion."

"Life is what happens when you're busy making other plans."

"Life is a journey, not a destination."

"Life's too short for regrets."