For many of us, our faith is faith in someone else's faith.  What conditions should normally be present in our minds for confirmation of what we call 'truth'?  We can all claim to know something, but to know for certain that we know is quite another thing.  It is not enough to use pragmatism as a formal basis for a belief system, since what we deem as practicality isn't a necessary condition for actuality.  Truth is not always what is most useful to believe, or what best meets our desired goals.  You sometimes have to ask yourself if what your depicting by your belief actually has the properties ascribed to it.

Many of us feel it to be impossible to be even temporarily removed from our beliefs in order to compare fresh propositions with objective facts.  All we ever know is that something appears true only if it corresponds to what we want to believe as true.  But is something true only if it agrees with our set of beliefs?  Of course not.  Here's an example:  A college student undergoing the usual conversion to atheism as a result of the proselytizing efforts of the so-called intelligentsia (who proclaim religious beliefs untrue) might find great utility in discovering the adult version of Christianity (which is sophisticated and quite different from their child's interpretation of theology they usually hold).  

Never be too easily convinced of an atheist's arguments if they claim Christianity exists on insufficient evidence, as if sufficiency of evidence was really something they cared about.   From the atheist perspective, they have faith the evidence is absolutely sufficient, just the other way around.  They believe wholeheartedly in everything anti-christian to the extent they consider no other options.  Or worse yet, they treat religious faith as a weakness in our nature from which we must free ourselves, not even in the least bit recognizing they are simply converting allegiances to another type of faith.  If a hundred old or new beliefs are completely ruined in our progress toward truth, we must still march on.