Who said "The night is endless, and so is my mission."?

This quote is attributed to Batman (1989).

The night is endless, and so is my mission. - Batman (1989)

"The night is endless, and so is my mission."

Batman (1989) Perseverance

"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."

"Perseverance is the key to success."

"Don't give up on what you believe in."

"I've been through worse."

"You learn to live with the pain."