Who said "I never said thank you."?

This quote is attributed to Batman (1989).

I never said thank you. - Batman (1989)

"I never said thank you."

Batman (1989) Gratitude

"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."

"Gratitude makes life richer."

"A grateful heart is a happy heart."

"Respect those who came before us."

"Life's greatest treasures are the people we love"