Terms of Endearment (6x06)
SCULLY: Mulder, where are you? I waited 45 minutes for you this morning.
MULDER: I, uh... Before I tell you I - I'm going to ask you to keep an open mind.
SCULLY: This isn't an X-File?
SCULLY: Mulder, we are supposed to be doing background checks not chasing X-Files.
MULDER: Scully, Spender just round filed this case-- it's unconscionable.
SCULLY: And what do you call rooting through his trash?
MULDER: Like that's any different from the assignment we're stuck with.
SCULLY: "We," Mulder? I'm stuck with it. You're not here.
MULDER: Scully, this is a classic case of demon fetal harvest - what they called in the middle ages atum nocturnem-- the impregnation of an unwitting woman by a dark lord of the underworld...
SCULLY: As host for his demon seed.
MULDER: Just humor me, Scully. Take a look at those medical records. I think they'll prove my theory.
SCULLY: In Slavic societies the name Veles was synonymous with... the Devil. From the Lithuanian root "Vele"-- a horned demon who sucks the souls of the innocent. Mulder, you're not suggesting that he is himself... a devil, are you?
MULDER: I'm not suggesting anything. I think the facts speak for themselves.
SCULLY: Mulder, I will accept that a man can be demonic that he may have demon-like attributes but why would a demon-- if there were such a thing-- bother with a 9:00-to-5:00 "Make Room For Daddy"-routine just so he can off his wife and unborn child?
MULDER: I don't know why; I'm not a psychologist [see pilot episode] but this is the best explanation for how that I've heard.
MULDER: These weren't Wayne's babies, Scully.
SCULLY: Well, whose babies were they?
MULDER: I think Wayne realized something last night. That's why he was out here digging. He realized that he'd met someone even more evil than he was-- who would sacrifice what he desperately wanted for himself.
MULDER: It was no coincidence that she ran into us last night. We were taken in by her just like Wayne was-- by a woman who would say anything or do anything to get what she wanted-- who was even more driven than he was.
SCULLY: To what?
MULDER: To have what only Wayne could give her.