Who said "I've seen too much to think otherwise now."?

This quote is attributed to Batman (DCEU).

I've seen too much to think otherwise now. - Batman (DCEU)

"I've seen too much to think otherwise now."

Batman (DCEU)

"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."