If there's any interest, I'd be willing to do a follow-up post with SG1 involving the Prometheus, Goa'uld and Ori.
"Legends... they whisper of a towering, gleaming city, rising from the ground, its spires harnessing the very power of lightning. Gods lived there, beings of indescribable power, terrible and majestic."
~
"Tales speak of the Ancestors and their limitless power... and their unceasing drive to conquer, to destroy all that was not utterly theirs."
~
"But were they any better than the darkness that encircled us, than the nameless things that lived within the shadows, eyeing our worlds - mad with hunger and yet kept at bay, drawn to the very fires that would consume them? We cannot say."
~
"You, who claim to be our champions - do you fight for us, as you say? Will you fight, even when the stars are covered with a thin grail of your own blood? Will you stand with us then?"
~
"Space itself burns with the war you began and you still cling to the belief that you had no choice? What have you done?"
