If we can't protect the Earth, you can be damn sure we will avenge it.

Tony Stark: Dr. Banner, your work is unparalleled. And I'm a huge fan of the way you lose control and turn into an enormous green rage monster. 
Bruce Banner: Thanks. 


Tony Stark: No offence, but I don't play well with others. 
Steve Rogers: Big man, in a suit of armour... take that away, what are you? 
Tony Stark: Uh... genius, billionaire, playboy, philanthropist... 


Thor: You people are so petty, and tiny. 


Tony Stark: Let's do a headcount: Your brother, the demigod; a super-soldier, a living legend who actually lives up to the legend; a man with breathtaking anger management issues; a couple of master assassins; and you've managed to piss off every single one of us. 
Loki: That was the plan. 
Tony Stark: Not a great plan. 


Loki: I have an army. 
Tony Stark: We have a Hulk. 


Steve Rogers: Hulk? Smash! 


Thor: He's my brother 
Natasha Romanoff: He killed 80 people in 2 days 
Thor: ...He's adopted 


The Hulk: Puny God! 
Tony Stark


Loki: It's an impressive cage. Not built, I think, for me.
Fury: Built for something a lot stronger than you.
Loki:Oh, I've heard. The mindless beast. Let's pray he's still a men. How desperate are you, that you call on such lost creatures to defend you?
Fury: How desperate am I? You threaten our world with war, you stole a force you can't hope to control, you talk of peace, but you kill because it's fun. You have made me VERY desperate. You might not be glad that you did.
Loki: Oh, it burns you to have come so close, to have the Tesseract, to have the power, unlimitd power. And for what? A warm light for all of mankind to share? And then to be reminded of what real power is...
Fury: Well, let me know if real power wants a magazine or something...


Tony Stark: There is no throne, there is no version of this where you come out on top! Maybe your army will come, maybe it's too much for us, but it's all on you! Becase if we can't protect the Earth, you can be damn sure we'll Avenge it!