"Our gods are dead. Ancient Klingon warriors slew them a millenia ago; they were more trouble than they were worth."
As badass as this bit of Klingon mythology may be, I'm not sure I see the relevance to rationalism. If I understand correctly, then what was considered "more trouble than they were worth" were the actual, really existing gods themselves, and not the Klingons' belief in imagined gods.
Here's the new thread for posting quotes, with the usual rules: