You can't convince a TRUE BELIEVER of ANYTHING. For the true believer (fanboy in musical terms), there is no place for reason, no room for logic, and most of all, no tolerance for a differing opinion. I'm not a religious person but some of my favorite quotes happen to be biblical, ie. "THERE IS NONE SO BLIND AS HE THAT WILL NOT SEE".
chas
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"Faith means not wanting to know what is true." [Nietzsche]