By the way, this is Fonz talking, for some reason my account was banned, so I occasionally use Arm-Chair's, who I live with.
Of course, you are right to insist that there is more to life than being reasonable, which is to say there is much more to life than merely understanding the world and getting one's beliefs about it to cohere. But we can have ethical and spiritual lives without lying to ourselves and to others and without pretending to be certain about things we are clearly not certain about. Anyone who thinks he knows for sure that Jesus was born of virgin or that the Qur'an is the perfect word of the Creator of the universe is lying. Either he is lying to himself, or to everyone else. In neither case should such false certainties be celebrated.
Let me close by asking you a simple question: What would constitute "proof" for you that your current beliefs about God are mistaken? (i.e., what would get you to fundamentally doubt the validity of faith in general and of your religion in particular?) I suspect the answer to this question will say a lot about why you believe what you believe.
Napoleon was a great general, no doubt, but a philosopher he wasn't. Heres another of his gems, that I always find amusing:
"What, sir, would you make a ship sail against the wind and currents by lighting a bonfire under her deck; I pray you excuse me. I have no time to listen to such nonsense."
--Napoleon Bonaparte