Dr. Grace Augustine: So you just figured you'd come here, to the most hostile environment known to man, with no training of any kind, and see how it went? What was going through your head?
Jake Sully: Maybe I was sick of doctors telling me what I couldn't do.
Neytiri: You have a strong heart. No fear... But stupid! Ignorant like a child!
Jake Sully: Look, at first it was just orders. And then, everything changed. Okay, I fell in love. I fell in love with the, with the forest, with the Omaticaya people, with you. With you.
Moat: It is hard to fill a cup that is already full.
Jake Sully: My cup is empty. Trust me. Just ask Dr. Augustine. I'm no scientist.
Moat: Then what are you?
Jake Sully: I was a marine. A warrior... Of the uh... Jarhead Clan.
Jake Sully: It's over.
Col. Quaritch: Nothing's over while I'm breathing.
Jake Sully: I was kinda hoping you'd say that.
Jake Sully: They're not going to give up their home. They're not going to make a deal. For what? A light beer and blue jeans? There's nothing that we have that they want. Everything they sent me out here to do is a waste of time. They're never going to leave hometree.
Jake Sully: I just want to say thanks for killing those things.
Neytiri: Don't thank. You don't thank for this. This is sad. Very sad only.
Jake Sully: Okay, okay. I'm sorry. Whatever I did, I'm sorry!
Neytiri: All this is your fault, they did not need to die.
Dr. Max Patel: Grace, this is Jake Sully.
Jake Sully: Madame.
Dr. Grace Augustine: Yeah, yeah, I know who you are and I don't need you. I need your brother. You know, the PHD who trained for 3 years for this mission.
Jake Sully: He's dead. I know it's a big inconvenience for everyone.
Dr. Grace Augustine: How much lab training have you had?
Jake Sully: I dissected a frog once.
Jake Sully: I see you.
Neytiri: I see you.
Dr. Grace Augustine: Just relax and let your mind go blank. That shouldn't be too hard for you.
Jake Sully: Everything is backwards now; like out there is the true world and in here is the dream.
Col. Quaritch: You are not in Kansas anymore, you are on Pandora, ladies and gentlemen, respect that fact every second of every day.
Moat: It is decided. My daughter will teach you our ways. Learn well, "Jakesully", and we will see if your insanity can be cured.
Col. Quaritch: Look, Sully, I want you to learn this savages from the inside, I want you to gain their trust. I need to know how to force their cooperation or hammer them hard if they won't.
Jake Sully: There's no such thing as an ex-marine. You may be out, but you never lose the attitude.
Col. Quaritch: This low gravity'll make you soft. When you get soft... Pandora'll shit you out dead with zero warning.
Col. Quaritch: A Marine in an Avatar body? Gives me the goosebumps!
Jake Sully: With your permission, I will speak now. You would honor me by translating. The Sky People have sent us a message... That they can take whatever they want. That no one can stop them. Well we will send them a message. You ride out as fast as the wind can carry you... You tell the other clans to come. Tell them Toruk Makto calls to them! You fly now, with me! My brothers! Sisters! And we will show the Sky People... That they can not take whatever they want! And that this... This is our land!
Selfridge: This is why we're here; because this little gray rock sells for twenty million a kilo.
Chosen answer: Jake and Neytiri were holding hands and Neytiri had her hair unbraided. It is also possible that when Na'vi mate, their appearance changes slightly in a way that only other Na'vi could see.