The World Security Council: You're running the world's greatest covert security network and you're going to leave the fate of the human race to a handful of freaks.
Nick Fury: I'm not leaving anything to anyone. We need a response team. These people may be isolated, unbalanced even but I believe with the right push they can be exactly what we need.
The World Security Council: You believe? War isn't won by sentiment, Director.
Nick Fury: No, it's won by soldiers.
Phil Coulson: We need you to come in.
Natasha Romanoff: Are you kidding? I'm working.
Phil Coulson: This takes precedence.
Natasha Romanoff: I'm in the middle of an interrogation. This moron is giving me everything.
Bad guy (the moron): I don't give everything.
Natasha Romanoff: Look, you can't pull me out of this right now.
Phil Coulson: Natasha... Barton's been compromised.
Natasha Romanoff: Let me put you on hold. (she eliminates everyone in the room) Where is Barton now?
Loki: I am Loki, of Asgard and I am burdened with glorious purpose.
Erik Selvig: Loki, brother of Thor.
Nick Fury: We have no quarrel with your people.
Loki: An ant has no quarrel with a boot.
Nick Fury: Are you planning to step on us?
Loki: I come with glad tidings of a world made free.
Nick Fury: Free from what?
Loki: Freedom. Freedom is life's great lie. Once you accept that, in your heart, you will know peace.
Nick Fury: Yeah, you say "peace," I kind of think you mean the other thing.
The Other: The Tesseract has awakened. It is on a little world, a human world. They would wield its power, but our ally knows its workings as they never will. He is ready to lead and our force, our Chitauri, will follow. A world will be his. The universe, yours. And the humans, what can they do but burn?