Quotes from book
Batman: Year One
"Year One", later referred to as "Batman: Year One", is an American comic book story arc published by DC Comics which recounts the superhero Batman's first year as a crime-fighter. It was written by Frank Miller, illustrated by David Mazzucchelli, colored by Richmond Lewis, and lettered by Todd Klein. Batman: Year One originally appeared in issues #404–407 of the comic book title Batman in 1987. As well as recounting Batman's early crime-fighting career, the story simultaneously examines the life of recently transferred officer James Gordon – eventually building towards their partnership.

“Alfred: Hmf. I suppose you'll take up flying next, like that fellow in Metropolis.”
Source: Batman: Year One

“Batman is a hero who wishes he didn't have to exist.”
About Batman's motives, as quoted by David Mazzuccheli in his Afterword to Batman: Year One.
Context: He's clearly a man with a mission, but it's not one of vengeance. Bruce is not after personal revenge... He's much bigger than that; he's much more noble than that. He wants the world to be a better place, where a young Bruce Wayne would not be a victim... In a way, he's out to make himself unnecessary. Batman is a hero who wishes he didn't have to exist.