Who said "We are all capable of becoming monsters."?

This quote is attributed to Verbal Kint.

We are all capable of becoming monsters. - Verbal Kint

"We are all capable of becoming monsters."

Verbal Kint

"The greatest trick the Devil ever pulled was convincing the world he didn't exist."

"And like that... he's gone."

"Keaton always said, 'I don't believe in God, but I'm afraid of him.'"

"There's nothing more dangerous than a man with nothing to lose."