Vesper

“[He]... watches the Joker rising from his wheelchair, the way a rabbit watches car headlights bearing down, unable to move a single, spotlit muscle. The madman's limbs appear to unlatch as though some psychotic god has chosen to give life to a complicated Swiss Army knife. The Joker's head rotates... the green lasers of his eyes target the keys at the big man's belt, and he shakes his head.”
― Grant Morrison, Batman and Son vs. the Black Glove

“A joker is a little fool who is different from everyone else. He's not a club, diamond, heart, or spade. He's not an eight or a nine, a king or a jack. He is an outsider. He is placed in the same pack as the other cards, but he doesn't belong there. Therefore, he can be removed without anybody missing him.”
― Jostein Gaarder, The Solitaire Mystery

“There is always Joker to see through the delusion. Generation succeeds generation, but there is a fool walking the earth who is never ravaged by time.”
― Jostein Gaarder, The Solitaire Mystery