I know plenty of intelligent people that are religious.  However, they typically agree that belief in god(s) is a matter of faith.  Not once do they tell me that they can prove their god(s) exist or that I am a fool for not believing in their god(s).  They explain that based on some "personal experience" with their god(s), they have accepted it on faith.  I am dubious of their "personal experiences", but I won't pre-judge them as I haven't had one.