Something that has always bothered me is the passage in the Book of Mormon that is always presented to potential new members (the church refers to them as "investigators") as a litmus test they can use to determine whether the things they are being told are true or not. The passage reads as follows:
And when ye shall receive these things, I would exhort you that ye would ask God, the Eternal Father, in the name of Christ, if these things are not true; and if ye shall ask with a sincere heart, with real intent, having faith in Christ, he will manifest the truth of it unto you, by the power of the Holy Ghost.
Okaaaaay.... so let me get this straight: I should ask the voice in my head whether these things are true or not, and if I approach the question already having faith in the teachings, with a real intent to have the voice in my head tell me it's true, and with a sincere heart hoping for it to be true.... then the voice in my head might tell me it's true? Shocking!
I'm pretty sure that if you try hard enough to believe in anything, you can make yourself believe it. This is not exactly an earth-shattering observation. And yet, it's supposed to be one of the most convincing "proofs" of the validity of the Book of Mormon.
If the BoM had been written a century later, this verse probably would have recommended clapping your hands too.