Mulder? Am I dead? If I am, they know that I know.

Langley

Mulder: I'm gonna X-File this bran muffin, get to the bottom of why it's so friggin' good.
Scully: I don't care if it came out of an alien's butt. I'm gonna eat the whole thing. Mmmm.

Skinner: You're asking me to betray them, to betray people that I care about.
Smoking Man [Laughs]: Oh no, I'm asking you to betray the whole human race.

My name is Carl Gerhard Bush, and I've been known by many aliases...

Cigarette Smoking Man

Smoking Man: This is going to end badly.
Reyes: Surely you've taken precautions.

Reyes: You won't shed a tear for Mulder.
Smoking Man: Of course I will.

Mind if I smoke?

Smoking Man

The aliens brought not only technology, they brought the seeds of our destruction.

Smoking Man

Mulder: So we just wait? Do nothing?
Scully: We do our work. The truth still lies in the X-Files, Mulder.

Skinner: Mulder's not the father. I'm asking. Who's the father?
Smoking Man: I am. William's my son.

I didn't set out to destroy the world, Mulder. People did.

CSG

Monica: You think you can play God?
CSG: Oh not God, certainly. They won't know what hit them, that their fates since birth. They were simply puppets.

The X-Files Quotes

Mulder: Air's gettin' a little hot in here.
O'Malley: Oh. Those don't roll down. I had the vehicle bulletproofed.
Mulder: Because you never know when a gun-toting liberal might go Hinkley.

Scully: I'm always happy to see you.
Mulder: And I'm always happy to find a reason.