Book excerpt: Generally speaking, arguments regarding the existence of a personal god as the creator of mankind can be divided into three categories: Godism, which supports the existence of such a God; agnosticism, which maintains that we can never know of his existence though it certainly may be possible; and atheism, which outright rejects his existence in any form. Maybe-ism is a new ism category that falls between Godism and traditional agnosticism but sits much closer to the former.