Battlestar Galactica

(Natalie speaks to the Quorum) Natalie: In our civil war, we've seen death. We watched our people die. Gone forever. As terrible as it was, beyond the reach of the Resurrection Ships, something began to change. We could feel a sense of time. As if each moment held its own significance. We began to realize that for our existence to hold any value it must end. To live meaningful lives we must die, and not return. The one human flaw, that you spend your lifetimes distressing over -- mortality -- is the one thing... well, it's the one thing that makes you whole.

Natalie: Madam President, you asked for a reason to help us? Vengeance. You destroy the hub, Cylons lose their ability to download. All of us. Roslin: Why would you be willing to lose your ability to resurrect? Natalie: We're rebels. We can't go back.