Who said "Gotham is dying. I am the cure."?

This quote is attributed to Batman (1989).

Gotham is dying. I am the cure. - Batman (1989)

"Gotham is dying. I am the cure."

Batman (1989)

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

"I am vengeance, I am the night, I am Batman."

"Criminals are a superstitious and cowardly lot."

"I have one rule."