Who said "I won't kill you because you're useful to me."?

This quote is attributed to Harvey Dent.

I won't kill you because you're useful to me. - Harvey Dent

"I won't kill you because you're useful to me."

Harvey Dent Power

"The night is darkest just before the dawn."

"I believe in Harvey Dent."

"You either die a hero or live long enough to see yourself become the villain."

"Fairness is the foundation of justice."

"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."