Who said "Being true to yourself is the most important thing."?

This quote is attributed to Courage the Cowardly Dog.

Being true to yourself is the most important thing. - Courage the Cowardly Dog

"Being true to yourself is the most important thing."

Courage the Cowardly Dog Truth

"Courage, the cowardly dog."

"What's wrong, Muriel?"

"Oh, the things I do for love."

"Stupid Eustace!"

"Lucy, you got some 'splainin' to do!"

"You must always be honest with the people you love."

"Truth always comes out in the end."

"Honesty is always the best policy."