ChaoSkeptic

There is a little known sect of Islam called the Druze. They are a small group mostly located in Syria, Lebanon, Israel, and Jordan. Their faith is similar to that of other Ismaili Shi'a Islam with a little bit of Gnostic Unitarianism thrown in for good measure. What makes the Druze interesting though is the number one Pillar of their faith:

1. (Truth in words) Speak the truth to other Druze. However, lying to unbelievers to defend yourself or the community is OK.

That's right, rule number one of Druzism is that you don't talk about Druzism. And if you do talk about Druzism, feel free to lie through your teeth about it. This, of course, makes it completely impossible for outsiders (especially anthropologists) to study their religion. As Daniel Dennett put it in Breaking the Spell:

But if it was true, this would create a dilemma for any anthropologist: the usual method of questioning informants would be a hopeless wild-goose chase, and if he made the ultimate sacrifice and converted to Druze himself so as to gain entrance to the inner sanctum, he would have to admit that we on the outside shouldn't believe his scholarly treatise, What the Druze Really Believe, since it was written by a devout Druze (and everybody knows that the Druze lie).

This naturally leads you to a Liars Paradox: if all Druzes lie about their religion then how do we know that they are telling the truth about their First Pillar? Maybe the Druze have become expertly adept at knowing when to tell the truth and when to tell a lie. They know to mix honest fact in with complete bullshit to constantly befuddle anyone trying to discover what they really believe.

And that seems like an admirable quality to me. Since beliefs are so immutable and silly in the first place why should we treat them so seriously? Lie about your beliefs as often as you can. Completely confuse your friends by telling them you are a Baptist Pagan. Mindfuck your family by saying that you believe every word of both The Urantia Book and Dianetics. Tell them that you believe six impossible things all at the same time! It's not like they can prove you wrong anyways. Follow the path of apologetics everywhere by coming up with the most twist pretzel logic in the history of man. And tell them that Eris made you do it.