I'm going to admit laziness early, and acknowledge that possibly you or someone else has something specific in mind. What would you [or any outside observer] consider reading to see that?
Edit: This also tempts me to build a time machine and ask my past self with whom I feel very disjointed from why he still holds onto his faith, or to grab myself during the transition and watch it happen again. Not to say I was religion at it's best, but I could see what convinced me better... alas, such is not the case :P
Don't be lazy -- either go do research, or admit that you have little or no rational doubt about your current position.
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