Who said "If I had courage, I could do anything."?

This quote is attributed to Charlie Brown.

If I had courage, I could do anything. - Charlie Brown

"If I had courage, I could do anything."

Charlie Brown Courage

"Good grief!"

"I got a rock."

"Rats! I did it again."

"Why is it that everything I do turns into a disaster?"

"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."