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

Langley

I don't know what I know. But I'll tell you what I do know. We gotta take a trip to IKEA.

Mulder

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

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

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

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.

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

Smoking Man

Mind if I smoke?

Smoking Man

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

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

Cigarette Smoking Man

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.

O'Malley: A government, driven not only by corporate greed, but by a darker objective, the takeover of America and then the world itself, by whatever means necessary, however violent, cruel or efficient. By severe drought, brought on by weather wars, conducted secretly using arial contaminants and high altitude electromagnetic waves, and a state of perpetual war, to create problem reaction solution scenarios to distract, enrage and enslave American citizens at home with tools like the Patriot Act and the National Defense Authorization Act, which abridge the constitution in the name of national security. The militarization of police forces in cities across the US, the building of prison camps by the Federal Emergency Management Agency with no stated purpose, the corporate takeover of food and agriculture, pharmaceuticals and healthcare, even the military in clandestine agendas to fatten, dull, sicken and control the populace already consumed by consumerism. A government that taps your phone, collects your data and monitors your whereabouts with impunity, a government preparing to use that data against you when it strikes and the final takeover begins.
Scully: The takeover of America.
O'Malley: By a well-oiled and well-armed multinational group of elites that will cull, kill and subjugate.
Scully: Happening as we sit here.
O'Malley: It's happening all around us.

The X-Files Season 11 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.