Bruce Wayne: What's that?
Lucius Fox: The Tumbler? Oh, you wouldn't be interested in that.
Henri Ducard: Always mind your surroundings.
Alfred Pennyworth: Actually it was Mr. Earle, he's taking the company public. He wanted to liquidate your majority sharehold. Those shares are worth quite a bit of money.
Bruce Wayne: It's a good thing I left everything to you then.
Alfred Pennyworth: Quite so, sir. And you can borrow the Rolls if you like. Just bring it back with a full tank.
Batman: I won't kill you... But I don't have to save you.
Bruce Wayne: A guy who dresses as a bat has issues.
Bruce Wayne: They told me there was nothing out there, nothing to fear. But the night my parents were murdered I caught a glimpse of something. I've looked for it ever since. I went around the world, searched in all the shadows. And there is something out there in the darkness, something terrifying, something that will not stop until it gets revenge. Me.
Dr. Jonathan Crane: He's here.
Cop: Who?
Dr. Jonathan Crane: The Bat...man.
Answer: First, he follows it up by saying it's because Bruce's father failed to act against Joe (to try to stop him), implying that his father was weak and a coward. But overall Ducard's stance was crime cannot be tolerated. "Criminals thrive on the indulgence of society's understanding." The League had tried to destroy Gotham before with economics, but men like Thomas Wayne tried to help the poor and he was killed by the same people he tried to help. In Ducard's mind, had Thomas Wayne not tried to help the poor and criminals, he wouldn't have been shot.
Bishop73