No Bible quotes? I'm disappointed...
Yet, I had made this bashing comment about bible. IMHO anyone can believe in whatever they want. Christ., Islam, anything. I (and I would say every friend of mine) don't care about what do you believe in, but if you publicly preach some religion, prepare to be made fun of, or take a stand and try defend it your religion with arguments. But no blind faith here.
(Personally, if I like some religion it's Shinto.)
If God wanted, He could make himself apparent to everyone. Clearly that isn't the case; there is room to doubt or to believe no matter how smart or accomplished you are.