(Scully's closing monologue as she types her report):
Although cleared of any wrong doing in the deaths of Amy and
David Cassandra, Agent Mulder still has no recollection of the
events that led to their deaths. His seizures have subsided,
with no evidence of permanent cerebral damage, but I'm
concerned that this experience will have a lasting effect.
Agent Mulder undertook this treatment hoping to lay claim to
his past. That by retrieving memories lost to him, he might
finally understand the path he's on. But if that knowledge
remains elusive, and if it's only by knowing where he's been,
that he can hope to understand where he's going, then I fear
Agent Mulder may lose his course. And the truths he is seeking
from his childhood will continue to evade him, driving him more
dangerously forward in impossible pursuit.

"The X-Files: Demons"