Who said "I've learned that power without purpose is destruction."?

This quote is attributed to Batman (1989).

I've learned that power without purpose is destruction. - Batman (1989)

"I've learned that power without purpose is destruction."

Batman (1989) Power

"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."

"Power without control is just destruction."

"Power is not about control, it's about influence"

"The world doesn't need me to be the hero. It just needs me to be dangerous."

"The claws come out when I need them to."