Would it be possible for Jedi to live and to work in the Jedi Temple, but be completely on the Dark Side (for example, for studying purposes)? I mean, could they help to understand each other or does being a Sith/Dark Jedi equate to I have to kill all Jedi and to rule over the galaxy
I have to kill all Jedi and to rule over the galaxy?
If not, then why are there no Dark Force users in the Jedi temple (or did I just overlook them)?
EDIT: For explanation: I meant a situation where the Jedi know that there is a Dark side user in their temple, and they work together, not that the Dark Side user is hiding his dark side.