[Rob Stuart]

Any atheist worth his salt will tell you that he or she can't be certain there is no god, George. The atheist position is simply that there is no good reason, based on the available evidence, to suppose that there is a supernatural explanation for creation, but intellectual honesty precludes them from being categorical about it. I reckon your poem fits the rubric just fine if you changed the first line to 'He who would atheist be.'