Spike: How many of my kind do you think you've done?
Buffy: Not enough.
Spike: Mm-hmm. And we just keep comin'. But you can kill a hundred, a thousand, a thousand thousand, and the armies of hell besides, and all we need is for one of us, just one, sooner or later to have the thing we're all hoping for.
Buffy: And that would be what?
Spike: (whispers in her ear) One... good... day.