Many atheists were formerly theists.
Still, I suppose it might have been better as "A scientist walked into what he thought was a bar, but seeing no bartender, barstools, or drinks, he revised his initial assumption and decided he only walked into a room."
This is our monthly thread for collecting these little gems and pearls of wisdom, rationality-related quotes you've seen recently, or had stored in your quotesfile for ages, and which might be handy to link to in one of our discussions.