Who said "Death is a doorway. But I won't walk through it yet."?

This quote is attributed to Batman.

Death is a doorway. But I won't walk through it yet. - Batman

"Death is a doorway. But I won't walk through it yet."

Batman Death

"It's not who I am underneath, but what I do that defines me."

"Fear is a tool. When that light hits the sky, it's not just a call. It's a warning."

"Criminals thrive on the indulgence of society's understanding."

"I have not come to fight men. I have come to save them."

"Death doesn't scare me anymore."

"Death and I are old friends."

"Welcome to my world."

"Death is just the beginning."