I am an agnostic because I cannot prove there is no God. But proving a negative is always difficult, so on my 99% surety I never criticise others who who do believe. Logic seems to play no part in religion. I remember seeing a TV report of the cyclone that hit New Orleans a few years back and the woman who was being interviewed , who had just lost two of her 4 children , said that God was with her that day and He saved two other children. You could ask why does He afflict innocent people including innocent children, with hurricanes, earthquakes, volcanoes and foul diseases if He is omnipotent? I sometimes hope that I am right because otherwise if there is a God, He is a sadist.