I also have read this ... and I dont wanna sound like a smart ass ... but if either of those debating God have read Pascals Pesnsees :
http://www.ntslibrary.com/PDF%20Books/Blaise%20Pascal%20Pensees.pdf

or Platons "The Cave" witch even has a short animation on

Youtube

these are things easy to understand ... then you could have a real debate ... conversation there are many more I could of mentioned but these i found to be my starting point of contemplation ...