Who said "The work worth doing is the work that scares you."?

This quote is attributed to Courage the Cowardly Dog.

The work worth doing is the work that scares you. - Courage the Cowardly Dog

"The work worth doing is the work that scares you."

Courage the Cowardly Dog Work

"Courage, the cowardly dog."

"What's wrong, Muriel?"

"Oh, the things I do for love."

"Stupid Eustace!"

"Hard work never killed anybody."

"Work with purpose and integrity."

"Hard work pays off in the end."

"A man's gotta do what a man's gotta do."