Social Worker: They don't give a shit about people like you, Arthur. And they don't give a shit about people like me either.
Arthur Fleck: I killed those guys because they were awful. Everybody is awful these days. It's enough to make anyone crazy.
Arthur Fleck: For my whole life, I didn't know if I even really existed. But I do, and people are starting to notice.
Arthur Fleck: What do you get when you cross a mentally ill loner with a society that abandons him and treats him like trash? You get what you fuckin' deserve.
Arthur Fleck: You don't listen, do you? You just ask the same questions every week. "How's you job?" "Are you having any negative thoughts?" All I have are negative thoughts.
Arthur Fleck: Better the blind man who pisses out of the window than the joker who told him it was a urinal. Know who the joker is? It's everybody.