[First spoken lines of series]
Number Six: Are you alive?
Military Liaison: Yes.
Number Six: Prove it.

Caprica Six: [to a baby whose neck she is about to snap] There there. It's okay. You're not gonna have to cry much longer.

Adama: Morning Starbuck. What do you hear?
Starbuck: Nothin' but the rain, sir.
Adama: Grab your gun and bring the cat in.
Starbuck: Boom boom boom.

[After Number Six tells Baltar that she's a Cylon and how the Colonial military could kill him over her access to the Defense Mainframe]
Dr Gaius Baltar: I'm going to call my lawyer. He's the best in the business. [dials numbers]
Caprica Six: That wouldn't be necessary, because in a few hours, no one will be left to charge you with anything.
Baltar: [puts down phone] What are you trying to say?
Caprica Six: Humanity's children are returning home...today.
[A nuclear detonation flares on the horizon behind them]

Apollo: So, what's the charge this time?
Starbuck: Striking a superior asshole.
Apollo: And I bet you've been waiting all day to say that one.
Starbuck: Most of the afternoon, yeah.

[Adama's speech at Galactica's decommissioning ceremony.]
William Adama: The Cylon War is long over, yet we must not forget the reasons why so many sacrificed so much in the cause of freedom. The cost of wearing the uniform can be high ... [after looking at crowd] but sometimes it's too high. You know, when we fought the Cylons, we did it to save ourselves from extinction. But we never answered the question, why? Why are we as a people worth saving? We still commit murder because of greed, spite, jealousy. And we still visit all of our sins upon our children. We refuse to accept the responsibility for anything that we've done. Like we did with the Cylons. We decided to play God, create life. When that life turned against us, we comforted ourselves in the knowledge that it really wasn't our fault, not really. You cannot play God then wash your hands of the things that you've created. Sooner or later, the day comes when you can't hide from the things that you've done anymore.

Starbuck: Why can't we use the starboard launch tube?
Chief Tyrol: It's a gift shop now.
Starbuck: Frak me.

Lt. Karl 'Helo' Agathon: Hey. Aren't you Gaius Baltar?
Baltar: [startled] Yeah, I haven't done anything!

President Laura Roslin: The lesson learned here is not to ask follow-up questions, but simply to say "Thank you, Captain Apollo, for saving our collective asses!"

Adama: You would rather that we run?
Roslin: Yes! Absolutely! That is the only sane thing to do here - exactly that, run. We leave this solar system and never look back.
Adama: You can run if you'd like. This ship will stand and it will fight.
Roslin: I'm going to be straight with you here. The human race is about to be wiped out. We have fifty thousand people left and that's it. Now, if we are even going to survive as a species, then we need to get the hell out of here and we need to start having babies!

Virtual Six: [on whether Doral is a Cylon] He doesn't seem the type and I don't remember seeing him at any of the Cylon parties.

Adama: [sees Billy flirting with Dualla] They'd better start having babies.
Saul Tigh: Is that an order?
Adama: It may be before too long.

Gaius Baltar: If there are Cylons aboard this ship, we'll find them.
Virtual Six: "We"? You are not on their side, Gaius.
Gaius Baltar: I am not on anybody's side.

Lieutennant Kara "Starbuck" Thrace: Permission to speak off the record?
Tigh: Granted.
Starbuck: You're a bastard.

[Adama's speech at the funeral services on Galactica.]
Adama: Are they the lucky ones? That's what you're thinking, isn't it? We're a long way from home. We've jumped way beyond the Red Line, into uncharted space. Limited supplies, limited fuel. No allies, and now, no hope? Maybe it would have been better for us to have died quickly, back on the Colonies with our families, instead of dying out here slowly, in the emptiness of dark space. Where shall we go? What shall we do? Life here began out there. Those are the first words of the sacred scrolls, and they were told to us by the Lords of Kobol, many countless centuries ago. And they made it perfectly clear that we are not alone in this universe. Elosha, there's a 13th colony of humankind, is there not?
Elosha: Yes. The scrolls tell us a 13th tribe left Kobol in the early days. They travelled far and made their home upon a planet called Earth, which circled a distant and unknown star.
Adama: It's not unknown. I know where it is! Earth. The most guarded secret we have. The location was only known by the senior commanders of the fleet, and we dare not share it with the public. Not while there was a Cylon threat upon us. For now we have a refuge to go to. A refuge the Cylons know nothing about. It won't be an easy journey. It'll be long, and arduous. But I promise you one thing: on the memory of those lying here before you, we shall find it, and Earth shall become our new home. So say we all!
TV series Season 1