Who said "I've learned that imagination is the greatest power."?

This quote is attributed to Bowser.

I've learned that imagination is the greatest power. - Bowser

"I've learned that imagination is the greatest power."

Bowser Imagination

"I'm not just some bad guy - I'm the king of the Koopas!"

"You think you can stop me? I have an entire army!"

"I didn't come this far to lose now."

"Fear me, for I am unstoppable!"

"Imagination is more powerful than knowledge."

"The world is full of wonders if you know where to look."

"You have the imagination of a child, Lucy"

"The world is full of mysteries waiting to be solved."