Who said "Imagination is the most powerful tool we have."?

This quote is attributed to Butters Stotch.

Imagination is the most powerful tool we have. - Butters Stotch

"Imagination is the most powerful tool we have."

Butters Stotch Imagination

"I'm not bad, I'm just drawn that way"

"Aw, hamburgers!"

"You're grounded, mister!"

"I have to go do my chores now"

"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."