Who said "I used to think that this was a job for a young man."?

This quote is attributed to Batman (DCEU).

I used to think that this was a job for a young man. - Batman (DCEU)

"I used to think that this was a job for a young man."

Batman (DCEU) Wisdom

"Do you bleed? You will."

"That's how it starts. The fever, the rage, the feeling of powerlessness."

"We have a list of names, but we are not going to read them."

"The world has been so caught up in what he can do, nobody has asked what he should do."

"I'm not angry, I'm just disappointed."

"The best things in life are free."

"You can't have everything in life, but you can have what matters most."

"A woman's intuition is rarely wrong."