I know it's nosy, but I had to ask, "So, what are you doing with the fruit and the sock?"
He looked up and smiled, "Well, I'm trying to construct a statement that's objectively true. I mean, true beyond doubt. Something that Descartes and Spinoza would hear and say, 'Yep, definitely true.'"
"Oh," I said, "That sounds good. So, uh, why the pink sock and the pomegranite, then?"
"It's easier to make objective statements about socks and fruit," he said firmly.
"Really?" I asked. Maybe he was on to something!
Alas. He sighed heavily, "No, I can't back that up. I'm not sure of that either."