I don't know why you decided to wear that costume, but it makes you a symbol. Just as Robin was a symbol. Or Superman, or Nightwing, or the policeman who wears his uniform. And this isn't just a symbol of the law, it's a symbol of justice. When one policeman is killed, others take his place because justice can't be stopped.
Marv Wolfman, Batman: A Lonely Place of Dying
justice, police, policeman