"On thin Ice" - from The Dark Knight Triology
http://www.youtube.com/watch?v=TLeV5roLWd0
"You have to become a terrible thought...a wraith...you have to become an IDEA!" - Ra's al Ghul, Batman Begins (2005)
"If you're good at something never do it for free." - Joker, The Dark Knight (2008)
"Ahh, you think darkness is your ally? You merely adopted the dark. I was born in it. Molded by it. I didn't see the light until I was a man. But it was nothing to me but blinding!" - Bane, The Dark Knight Rises (2012)
"Catwoman: Come with me. Save yourself. You don't owe these people any more. You've given them everything.
Batman: Not everything. Not yet." - The Dark Knight Rises (2012)