Who said "Courage is doing the right thing even if you're lonely."?

This quote is attributed to Mater.

Courage is doing the right thing even if you're lonely. - Mater

"Courage is doing the right thing even if you're lonely."

Mater Courage

"I'm a tractor tippin' fool!"

"Dadgum!"

"Well, I'll be!"

"You're my best friend!"

"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."