My family, who are all Xians, often berate me for not believing. They say,"God exists because the bible says so; the bible is true because its god's word". Fortunately, I found the 'Excel Argument' that circular formulas are errors. They never mentioned it again.

If that's their reasoning, I feel sorry for them, but they are far from alone. I think the world would be a better place if people spent more time thinking about their deeply held beliefs and why they have them, whether they are religious or not.

Oh, and "Excel Argument" -- I love that.