Who said "I've seen what this world can do to a good person."?

This quote is attributed to Batman (1989).

I've seen what this world can do to a good person. - Batman (1989)

"I've seen what this world can do to a good person."

Batman (1989) Truth

"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."

"Lucy, you got some 'splainin' to do!"

"You must always be honest with the people you love."

"Truth always comes out in the end."

"Honesty is always the best policy."