Scully is a skeptic that bealieves that the universe is a orderly thing. But as each X-file passes and goes it seems that her skepticism slightly diminshes. Early in the forth season in the episode "momento mori" scully was diognosed with a un-opertable cancer tumor in her upper right nasal cavity. The saga says that the cancer was given to her while she was apparently abducted by aliens. In "gethsemene" she reports under the cloud of the alleged death of mulder that her cancer has moved into her bloodstream and each day she waits for the "inevidible."
Now, don't get us wrong scully is a true warrior in the saga of the X-files. Even though most of the time her theroy conflicts with mulders'. Scully believes that science will lead her and Mulder to find the truth.