Who said "Imagination cannot escape the facts of mortality."?

This quote is attributed to Grim.

Imagination cannot escape the facts of mortality. - Grim

"Imagination cannot escape the facts of mortality."

Grim Imagination

"I'm a creature of pure evil, and I find your optimism... disturbing."

"Foolish boy, your mortal comprehension cannot fathom my dark intentions."

"Death is my business, and business is good."

"Your pitiful existence amuses me."

"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."