Ducard: Don't be afraid, Bruce. You're just an ordinary man in a cape. That's why you can't fight injustice, and that's why you can't stop this train.
Batman: Who said anything about stopping it?
[An explosion destroys the tracks ahead.]
Batman: [Overpowering Ducard] You never learned to mind your surroundings.
Ducard: Have you finally learned to do what is necessary?
Batman: I won't kill you. But I don't have to save you.
  
  
  
  
  
   
  
  
Batman: Who said anything about stopping it?
[An explosion destroys the tracks ahead.]
Batman: [Overpowering Ducard] You never learned to mind your surroundings.
Ducard: Have you finally learned to do what is necessary?
Batman: I won't kill you. But I don't have to save you.
 Ducard : Don't be afraid, Bruce. You're just an ordinary man in a cape. That's why you can't fight injustice, and that's why you can't stop this train. 
 Batman : Who said anything about stopping it? 
 [An explosion destroys the tracks ahead.]  
 Batman :  [Overpowering Ducard]  You never learned to mind your surroundings. 
 Ducard : Have you finally learned to do what is necessary? 
 Batman : I won't kill you. But I don't have to save you. 
http://www.moviequotedb.com/movies/batman-begins/quote_2972.html