Like as much as the guy annoys me otherwise, I gotta say Neil DeGrasse Tyson's analogy of the golf player sums it up really well.
There's something about atheism that I've repeatedly tried and failed to put into words on several posts on this blog but I think I finally got it.
Atheists are the only religious minority who, even (or sometimes even *especially*) in ostensibly progressive spaces are not allowed to ever act like they're sure of their beliefs.