MULDER: Yes, we should... but not for this.

SCULLY: I don't know. It's, uh... it's not a simple bisection. There's a considerable amount of his abdomen missing. I mean, it almost looks like a burning but it's too localized. Maybe an industrial acid.

MULDER: There's, um... no acid found in his office.

SCULLY: Hmm. Spontaneous human combustion.

MULDER: Scully...!

SCULLY: Well, isn't that where you're going with this?

MULDER: Dear Diary: Today my heart leapt when Agent Scully suggested spontaneous human combustion.

SCULLY: Mulder, there are one or two somewhat well-documented cases. Mulder, shut up.

SCULLY: He walks through solid objects?

MULDER: Changing their composition fundamentally-- making steel brittle, turning lead bullets into powder.

SCULLY: And flesh into carbon.

MULDER: I don't know how else to explain what happened to that prison superintendent or to poor Mr. Merkle over there, who's got no face anymore.

SCULLY: But where's the science in all of this, Mulder? You're talking alchemy.

MULDER: I'm not saying that it can't be explained scientifically. Maybe it's the tornado. You suggested it yourself. Unusual climatic conditions... high electrical potential...

SCULLY: I'm sorry I even brought it up.

SCULLY: He stopped at the mirror.

MULDER: Or the mirror stopped him. What makes an object solid, Scully? I mean, what, what prevents one solid object from passing through another solid object, usually?

SCULLY: Electrostatic repulsion. Individual electrons repelling one another like magnets.