TARKIN : Their fire has gone out of the universe. You, my friend, are all that's left of their religion.

VADER : Yeah... Well strictly speaking though Sith Lords aren't Jedi we do share the same religious Credo just different perspectives on how to use it so The Emperor is also a believer and then there's all those Inquisitors and the Dathomir witches... they believe in the Force and use it's power and there must be dozens of Jedi we missed still out there hiding swamps Etc. And you still hear people say May the Force Be With You, particularly after someone sneezes so... it's not we all went to the Dawkins side or anything.

TARKIN : What's a Dawkins?

VADER : Evolutionary biologist from the future, he married a time traveler.

TARKIN: They believe in evolution in the future?

VADER: Yeah I know...it's kind of quaint, they must have gone through some kind of dark age or something.