Agent Colton: So, Mulder, what do you think? Does this look like the work of little green men?
Mulder: Grey.
Agent Colton: Excuse me?
Mulder: Grey. You said green men. A Reticulan's skin tone is actually grey. They're notorious for their extraction of terrestrial human livers. Due to iron depletion in the Reticulan galaxy.
Agent Colton: You can't be serious.
Mulder: Do you have any idea what liver and onions go for on Reticula?

Bruskin: Okay, everyone, Mulder says he's got something.
Daniels: What? An alien virus or new information on the Kennedy assassination?
Bruskin: Hey, Mulder's all right. If you'd pay attention, you might learn something from the man.

Byers: That's why we like you, Mulder. Your ideas are weirder than ours.

Cecil L'Ively: [To Mulder] Time to call 911? [clicks fingers, causing the corridor to bust into flames]

Deep Throat: [last words] Trust no one.

Deep Throat: Calling it a night, Mr. Mulder?
Mulder: My mother usually likes me home before the street lights come on.

Deep Throat: I know why you've contacted me. Listen and I'll explain. I am not particularly proud of the way in which this matter was handled, but, like it or not, John Barnett is a fact of life.
Mulder: I wish Agent Perdue were around to appreciate the irony.

Deep Throat: The world's reaction to such knowledge would be far too dangerous.
Mulder: Dangerous. You mean in a sense of outrage, like the reaction to the Kennedy assassinations or M.I.A.s or radiation experiments on terminal patients, Watergate, Iran-Contra, Roswell, the Tuskegee experiments, where will it end? Oh, I guess it won't end as long as...men like you decide what is truth.

Deep Throat: If a shark stops swimming, it will die. Don't stop swimming.

Deep Throat: Leave this case alone, Agent Mulder.
Mulder: What?
Deep Throat: The military will not tolerate an FBI investigation.
Mulder: Who are you?
Deep Throat: I, er, can be of help to you. I've had a certain interest in your work.
Mulder: How do you know about my work?
Deep Throat: Well, let's just say that I'm in a position to know quite a lot of things, er, things about our government.
Mulder: Who are you? Who do you work for?
Deep Throat: It's unimportant, I came here to give you some valuable advice. You are exposing yourself and Agent Scully to unnecessary risk, I advise you to drop the case.
Mulder: I can't do that.
Deep Throat: You have much work to do, Agent Mulder, don't jeopardise the future of your own efforts.

Deep Throat: Mister Mulder, why are those like yourself, who believe in the existence of extraterrestrial life on this Earth, not dissuaded by all the evidence to the contrary?
Mulder: Because, all the evidence to the contrary is not entirely dissuasive.
Deep Throat: Precisely.
Mulder: They're here, aren't they?
Deep Throat: Mister Mulder, they've been here for a long, long time.

Deep Throat: You're awfully quiet, Mr. Mulder.
Mulder: I'm wondering which lie to believe.

Det. Fiore: Best we can figure, it was some kind of payback.
Mulder: For what?
Det. Fiore: Well, around that time, the organized crime division was doing a major sweep in Chinatown.
Mulder: The Triads.
Det. Fiore: Yeah. Some very heavy busts went down against the Woo Shing Woo. A lot of smack never made it to the street. You can bet there were some pretty pissed off people playing mahjong that week.
Mulder: So you think that Charlie Morris was killed as a warning to back off?
Det. Fiore: I think they picked a cop - any cop - and they whacked him.

Ellen: What about that guy you work with?
Scully: Mulder?
Ellen: I thought you said he was cute.
Scully: He's a jerk. He's not a jerk. He's, um... he's obsessed with his work.

Eve 10: Hello, Eve 8.
Eve 9: We've been waiting ...
Eve 8: How did you know I'd come for you ?
Eve 10: We just knew.
Eve 9: We just knew.