Arguments for atheism can be divided into two main categories: those that dispute the existence of god and those that demonstrate the ill effects of religion. It might be better if I broadened this somewhat, and said those that dispute the existence of an intervening god. Religion is, after all, more than the belief in a supreme being. It is the cult of that supreme being and the belief that his or her wishes have been made known or can be determined. Defining matters in this way, I can allow myself to mention great critics such as Thomas Jefferson and Thomas Paine, who perhaps paradoxically regarded religion as an insult to god.