Who said "The best relationships are built on mutual courage."?

This quote is attributed to Courage the Cowardly Dog.

The best relationships are built on mutual courage. - Courage the Cowardly Dog

"The best relationships are built on mutual courage."

Courage the Cowardly Dog Relationships

"Courage, the cowardly dog."

"What's wrong, Muriel?"

"Oh, the things I do for love."

"Stupid Eustace!"

"The key to a happy marriage is communication."

"Marriage is about compromise and understanding."

"Life's greatest treasures are relationships."

"Trust is a luxury I can't afford."