Mulder (enters the hospital in body armour holding the gun): Federal agent. Go about your business as usual.

Mulder: (Upon being told that Dr. Blockhead could make his testicles shrivel up inside him) Oh, mine are doing that as we speak.

Mulder: ... in most of my work, the laws of physics rarely seems to apply.

Mulder: [taking his shirt off] Before anyone passes judgment, may I remind you - we are in the arctic.

Mulder: Bambi also has this theory I've never come acro--
Scully: Who?
Mulder: Doctor Berenbaum. Anyway, her theory is--
Scully: Her name is Bambi?
Mulder: Yeah. Both her parents were naturalists. Her theory is that UFOs are actually nocturnal insect swarms passing through electrical air fields.
Scully: Her name is Bambi?

Mulder: Before I could only trust myself. Now I can only trust you. And they have taken you away from me.

Mulder: Do you believe in the existence of extraterrestrials?
Scully: Logically I would have to say no. Given the distances need to travel from the of reaches of space the energy requirements would exceed a spacecraft's capabilities ...
Mulder: Conventional wisdom...

Mulder: Eh, Scully, if I'm not mistaken, we're gonna be taking a left up here... eh, there's an intersection up here, you're gonna wanna... Scully! You're gonna, wanna...! You just... ran a stop sign back there, Scully.
Scully: Shut up, Mulder.
Mulder: Sure, fine, whatever.

Mulder: Get that gun out of my face!
X: This high-capacity compact Sig Sauer .40 caliber weapon is pointed at your head to stress my insistence that your search for who put your partner on that respirator desist immediately!
Mulder: You ignore my call for help and then you expect me to do what you say-- you go to hell!
X: You got him killed! You got her killed! That's not going to happen to me! You're my tool, you understand? I come to you when I need you! Right now, you're heading in a direction that can lead them right here.
Mulder: What the hell are you talking about?
X: You're not supposed to know. That's the point.
Mulder: I owe her more than just sitting around doing nothing.
X: She was a good soldier, Mulder, but there's nothing you can do to bring her back.
Mulder: She's not dead.
X: (laughing) Listen to you. Listen. You're a damn schoolboy, Mulder. You have no idea. No idea!
Mulder: Okay, then tell me. Tell me!
X: ...I used to be you. I was where you are now. But you're not me, Mulder. I don't think you have the heart. Walk away. Grieve for Scully and then never look back. You will be able to live with yourself, Mulder... on the day you die.

Mulder: Great.
Scully: What?
Mulder: You shouldn't have told them. They have no jurisdiction.
Scully: Mulder... They're NSA. They think the boy may be a threat to national security.
Mulder: Come on. How could an eight year old boy, who can barely multiply, be a threat to national security? And people call me paranoid.

Mulder: Hey, that's a nice tattoo, what is that?
Bartender: What's it look like?
Mulder: Flying saucer. You don't really believe in that stuff, do ya?
Bartender: I take it you don't.
Mulder: No, I think it's all just a bunch of crazy people howling at the moon.

Mulder: How many dishes do you have to break before your boss tosses you in an oven?

Mulder: How was the opera?
X: Wonderful. I've never slept better.

Mulder: I could be mistaken. Maybe it was another bald-headed, jigsaw-puzzle-tattooed, naked guy I saw.

Mulder: I got the impression that Glazebrook wasn't the only sideshow performer residing here.