"Just believe" doesn't work in math, or science. I won't even begin to go into evolution."

Sure it does. I bet you believe in more scientific theory than you do scientific fact. In fact I bet you cannot even tell the difference most of the time because by the time it gets to you it has been translated by so many people theory becomes fact.

Think about the just believe part beyond the surface and relate it back to the complete work of the bible. What you end up with is an act of faith that there is more to life than what you will expierience in the body you occupy today.