Philosophical Thought in the Neolithic (and why we cannot see it)

While responding to a mail from the managing editor of a scholarly magazine,  who I'd pointed in the direction of a couple of articles on my blog, I found myself condensing my project into the compass of just four paragraphs. This covers both what I am doing, and why. I reproduce them here:
Years ago I read Adolf Erman's collection of Egyptian Literature in English translation. One text in particular made me sit up, since it involved the use of concepts I associated with classical Greece....