An Australian friend of mine when slightly inebriated said that all religion - mainly Christianity and Islam - was ridiculous. He himself was a child of the enlightenment, he slurred, so he did not believe it. As he warmed to his theme, he went on to use words like "nonsense" and "dangerous". He spoke, I am afraid, for an awful lot of people.But was he right? This little booklet delves into two questions which he skirted. First of all, what is the...