While Mulder wants to believe, the phrase indicates an awareness of doubt and the fallibility of the evidence he chases.
Released six years after the original series ended, this film was intended as a standalone "Monster of the Week" style thriller. The X Files: I Want to Believe (2008) - IMDb The X-Files - I Want to Believe ...
Mulder purchased the original 24x36-inch poster from a head shop on M Street in Washington, D.C.. While Mulder wants to believe, the phrase indicates