Bra'tac: Now we die.
O'Neill: Well, that's a bad plan.

Daniel: How is it that you always manage to come up with the worst case scenario?
Jack: I practice.

Rigar: Let us talk about your friend in the woods.
Jack: I have no friends, in the woods or otherwise.

O'Neill: I think it's time for a new plan.
Bra'tac: We offer to lay down our lives for your world, Human. You cannot ask more.
O'Neill: No. I can't. But I think the better idea is to get the other guys to lay down their lives for their world first. Hm?

Teal'c: Undomesticated equines could not remove me.
Jack: It's wild horses, Teal'c.

Jack: [Teal'c is doing a spacewalk] Say something!
Teal'c: One small step for Jaffa.
Jack: Very nice.

Narim: No harm will come to you. The Tollan will guarantee it.
Jack: Is that a "money back if you're not completely alive" guarantee?

STARGATE SG-1

EDIT: Rob suggested I should include a musical selection to this post, so how about this one:

Stargate SG 1 Theme"