Loyalty to a petrified opinion never yet broke a chain or freed a human soul. – Mark Twain
I think I'll ponder this today, because it's axiomatic: there are some opinions stuffed and mounted between my ears that simply no longer serve truth. There are also several arriving every day, mostly by email, that I would be better off not taking in.
Mark Twain was a horse of a different stripe, and still under-appreciated. If I made a list of dead famous people I'd like to meet, he'd be there. He was great, and that's my opinion.
Metaphor
Surely some revelation is at hand.
Metaphor 
Interesting. Faith isn't objective but religion is. Religion is social and its tenets are tested rigorously against the group. That's how Warren Jeffs got a whole town to isolate and protect his crimes. And why hasn't the whole town been tried for conspiracy to commit child abuse?
I fret that if I tested my opinions against any objective standard, I'd have to spend the rest of my life opinionless, testing and fretting and hidebound in the process. Much more dramatic to have opinions and viewpoints without evidence. I mean, what if the high priests in Jerusalem didn't opine that Jesus was a threat? Arabs didn't believe Allah sent a messenger? Where's the fun in a world of rationality?