Margaret Scully: Hello, Fox.
Scully: [smiles] Not Fox. Mulder. [opens her eyes]
Mulder: How you feeling?
Scully: [suddenly, apologetically] Mulder, I don't remember anything. After Duane Barry...
Mulder: [shakes his head] Doesn't... doesn't matter.

Melissa Scully: I don't have to be psychic to see that you're in a very dark place. Much darker than where my sister is. Willingly walking deeper into darkness cannot help her at all Only the light...
Mulder: [disgustedly] Oh, enough! - with the harmonic convergence crap, okay, you're not saying anything to me.
Melissa Scully: [angrily] Why don't you just drop your cynicism and your paranoia and your defeat. You know, just because it's positive and good, doesn't mean it's silly or trite.

Mulder: [in response to some suggestive remarks about Scully] You know, Frohike, it's men like you that give perversion a bad name.

Mulder: [Mr. X hands Mulder an envelope] What's this?
Mr. X: Data from a top secret military project. Born of the idea that sleep was the soldier's greatest enemy.
Mulder: Grissom was conducting sleep deprivation experiments on Parris Island?
Mr. X: Not deprivation. Eradication.
Mulder: Why?
Mr. X: Why else? To build a better soldier. Sustained wakefulness dulls fear, heightens aggression. Science had just put a man on the moon. So now they looked to science to win a losing war.
Mulder: And Willig and Cole were the lab rats.
Mr. X: Lab rats with the highest kill ratio in the Marine Corps. Four thousand-plus confirmed kills for a thirteen-man squad.
Mulder: You think Cole's behind what's happening now?
Mr. X: I'm not here to do your thinking, Agent Mulder. All I know is, that Augustus Cole hasn't slept in twenty-four years.

Mulder: Don't you want to keep it?
Margaret Scully: When you find her, give it to her.

Mulder: Fear. It's the oldest tool of power. If you're distracted by the fear of those around you, it keeps you from seeing the actions of those above.

Mulder: He believes the government is out to get him.
Mr. X: It's tax season - so do most Americans.

Mulder: I brought you a present. It's a video. Superstars of the Superbowls.
Scully: I knew there was a reason to live.

Mulder: I feel, Scully... that you believe... you're not ready to go. And you've always had the strength of your beliefs. I don't know if my being here... will help bring you back. But I'm here.

Mulder: Mrs. McRoberts?
Bonnie McRoberts: Yes?
Mulder: This is Sheriff Spencer, and I'm Special Agent Fox Mulder, with the Federal Bureau of Investigation. May we come in?
Bonnie McRoberts: I'm late for work.
Mulder: You can blame me.

Mulder: Scientist say three species become extinct everyday. Who knows how many new ones are being created?

Mulder: You know, sometimes, it just gets really hard to smile through it when they ask you to bend down and grab your ankles. You know?
Scully: It's not exactly as if you've ever tried to fit into the program.

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

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

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.