Who said "Don't think too hard - just do it!"?

This quote is attributed to Screwy Squirrel.

Don't think too hard - just do it! - Screwy Squirrel

"Don't think too hard - just do it!"

Screwy Squirrel Courage

"I'm nuts! Completely nuts! And I love it!"

"Why be normal when you can be spectacular?"

"Life's too short to be boring!"

"Adventure is waiting around every corner!"

"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."