Says

Scully: No... I don't think it's witchcraft or sorcery. I've looked around and I don't see any evidence of anything that warrants that kind of suspicion.

X-Files
"Chinga" S5E10
Mulder: Well, maybe you don't know what you're looking for.

Scully: Like evidence of conjury or the black arts? Or shamanism, divination, Wicca, or any kind of pagan or neo-pagan practice? Charms, cards, familiars, blood-stones, or hex signs, or any kind of the ritual tableau associated with the occult; Santeria, Voudom, Macumba or any high or low magic...

Mulder: Scully?

Scully: Yes?

Mulder: Marry me.

Scully: I was hoping for something a little more helpful.