As we walked, he asked me, “Don, you study mathematics, yes?” “Yes.” “If you have one cup and then you add another cup, how many cups do you have?” Well, I was taking some mathematics courses, so I said, “Two.” “If you have two cups and you add another cup, how many cups do you have?” I said, “Three.” “If you have three cups, and you take away one cup, how many cups do you have?” I said, “Two.” So far I was hitting on all cylinders. So he said, “You believe that the Father is God?”