Who said "I've found that imagination is just planning."?

This quote is attributed to Frank Castle.

I've found that imagination is just planning. - Frank Castle

"I've found that imagination is just planning."

Frank Castle Imagination

"Punishment is a language they understand."

"I'm not a hero. I'm a tool, sharpened and aimed."

"The only way to stop evil is to be better at it than they are."

"Mercy is for the living. The dead don't care."

"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."