"Unfortunately honor and fairness are human concepts, Holly. The universe is indifferent. If you refuse to fight fire with fire, to murder a murderer, then the consequences of that murderer walking free fall not just on you, but on everyone relying on you. The bulk of the responsibility falls on the murderer for murdering people, but it starts with you. You are the headwaters of that river. You are ultimately the source." I smile grimly at her. "It's not all doom and gloom, though. If you get used to thinking in actions and consequences, rather than right or wrong, the truth is that you'll end up doing less damage to society then those who cling blindly to a moral code and call themselves a good person regardless of the consequences of their actions. Superiority through careful consideration of action, instead of blind faith in right and wrong."