Proofs in general require some axioms accepted as true. Proofs relating to the existence/non-existence of a god or gods seem to require axioms which beg the question. Cogent arguments on this issue seem to be the most a person can hope for. As an atheist, I consider theist beliefs to be a comforting way to make peace with the known fact that humans are mortal. I make peace with the fact of my mortality via the following thoughts. I hope for the courage to change for the better circumstances over which I have some control. I hope for the serenity to accept the circumstances over which I have no control, especially my own mortality & the mortality of those I care for. I further hope for the wisdom to know the difference between the above sets of circumstances.