Who said "Every system believes itself righteous. That's the joke."?

This quote is attributed to The Joker.

Every system believes itself righteous. That's the joke. - The Joker

"Every system believes itself righteous. That's the joke."

The Joker Justice

"All you care about is money. This town deserves a better class of criminal."

"I'm not a monster. I'm just ahead of the curve."

"Madness is like gravity. All it takes is a little push."

"Everything burns."

"Justice must always prevail."

"You think I'm just some animal?"

"Fighting for what's right never gets easier."

"Justice is worth fighting for."