Gayness is built into Batman. I'm not using gay in the pejorative sense, but Batman is very, very gay. There's just no denying it. Obviously as a fictional character he's intended to be heterosexual, but the basis of the whole concept is utterly gay.

Adults...struggle desperately with fiction, demanding constantly that it conform to the rules of everyday life. Adults foolishly demand to know how Superman can possibly fly, or how Batman can possibly run a multibillion-dollar business empire during the day and fight crime at night, when the answer is obvious even to the smallest child: because it's not real.

And when it's all done, when there's no one left you'll come back for me. And tell me who I am and why I have to do what I do. And explain 'Eternity.' You'll come back

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

Because it all derived from Superman. I mean, I love all the characters, but Superman is just this perfect human pop-culture distillation of a really basic idea. He's a good guy. He loves us. He will not stop in defending us. How beautiful is that? He's like a sci-fi Jesus. He'll never let you down. And only in fiction can that guy actually exist, because real guys will always let you down one way or another. We actually made up an idea that beautiful. That's just cool to me. We made a little paper universe where all of the above is true.

I just wanted all the wars to be over so that we could spend the money on starships and Mars colonies.

I couldn't think of one clever way to stop this guy, so I just trusted to mindless violence.