“Bill Finger and I created the Joker. Bill was the writer. Jerry Robinson came to me with a playing card of the Joker. That's the way I sum it up. [The Joker] looks like Conrad Veidt — you know, the actor in The Man Who Laughs, [the 1928 movie based on the novel] by Victor Hugo. … Bill Finger had a book with a photograph of Conrad Veidt and showed it to me and said, 'Here's the Joker'. Jerry Robinson had absolutely nothing to do with it. But he'll always say he created it till he dies. He brought in a playing card, which we used for a couple of issues for him [the Joker] to use as his playing card".”

“There must be some kind of way out of here,' said the joker to the thief…”

“You know, in my experience,” said Kareem, caging his fingers and drawing out his words, “the jokers…who talk the most about ‘playing the race card’…are the people who own all the diamonds…who’ve picked up the clubs…to beat down the spades…because they’ve got no heart.”

“Joker, making clowns no longer objects to laugh at.”

“The joke loses everything when the joker laughs himself.”

“["Lines you wouldn't hear in a superhero movie"] What's that Joker, you'll be back? Somehow I don't think you will be.”

“Enough madness? Enough? And how do you measure madness? - The Joker”

“So I'm an ace?' Will grinned. 'I'm flattered Halt, flattered. I had no idea you regarded me so highly.'
Halt gave him a long-suffering look. 'I might have been more accurate to say a joker.'
Whatever you say.”

“Bill Finger was a contributing force on Batman right from the beginning. He wrote most of the great stories and was influential in setting the style and genre other writers would emulate … I made Batman a superhero-vigilante when I first created him. Bill turned him into a scientific detective.”

“Clowns to the left of me, jokers to the right, here I am -- not stuck in the middle, but hovering above the entire farcical spectrum, weeping as I behold my fellow man's devotion to political illusion and self-destruction.”