Castle, Season 3

Montgomery:
We speak for the dead. That's the job. We are all they've got once the wicked rob them of their voices. We owe them that. But we don't owe them our lives.

Beckett:
He [Castle] said that we can't win this.

Montgomery:
He's right. I've spent most of my life walking behind this badge, and I can tell you this for a fact. There are no victories. There's only the battle. And the best that you could hope for is that you find some place where you can make your stand. If this is your spot, I will stand with you.