"We are not who we are..."

Season 1 - #7 Ice

Bear: Credentials. The only credentials that I have is that I'm the only pilot
             willing to fly you up there. You don't like those credentials... walk.

Scully: Hey, look, there's only one way to proceed. A good doctor eliminates every
               possibility. We must determine if any of us is infected.

Mulder: We were told we would have three clear days of weather, over.

Radio: Welcome to the top of the world, Agent Mulder. Over.

Scully: No. We do them in front of each other. No secrets.

Mulder: Before anyone passes judgement, may I remind you we are in the Arctic.

Mulder: Scully, get that gun off me!

Mulder: Scully! For God sakes, it's me!

Scully: Mulder... you may not be who you are.

Scully: There's four of us.

Scully: If Mulder is infected, it's not his fault! We can't turn our backs on him now,
                he needs us to help him!

Scully: If anything happens, you come inside. I can't do this to him until I'm sure.

Mulder: (whispering) I would have but you pulled a gun on me. Now I don't trust them.
                 I wanted to trust you.

Mulder: It's still there, Scully. 200,000 years down in the ice.

Scully: Leave it there.