“Did you really think that I would risk the battle for Gotham's soul...” – The Joker, The Dark Knight ... Movie Quotes Database

[To Batman hanging upside down from a building]

Did you really think that I would risk the battle for Gotham's soul in a fist fight with you?! When dealing with this city, you need an ace in the hole. Mine's Harvey.

More from The Dark Knight

The Joker Never start with the head. The victim gets all fuzzy. He can't feel the next–[Batman pounds the Joker's hand and he comically waits to register the pain] See? Harvey Dent/ Two-Face The night is darkest just before the dawn. And I promise you...the dawn is coming. Harvey Dent/ Two-Face You're a lucky man. [about Sal's driver, after flipping his coin once more] He's not...your driver [Two-Face shoots the driver, possibly killing Maroni in the process]