[general_re]

Me: What I'm saying is that your presumption of what universal truth is, is necessarily predicated on what you think has been given to you by a particular deity.

You: I don't think you have any basis for making that claim. I'd be interested in seeing you try to back it up somehow.

Okay, then, I'll revist my earlier question, and now I must insist on an answer - where, precisely, do you believe universal truth comes from? What, precisely, do you feel is the source of morality?

So, to answer your last question, I behave as though I can know something because I can.
...
Do you agree that it's possible, in the abstract, to know the truth about something without being able to prove it objectively?

Define what it means to "know" something. Once we get round that bend, we may make some further progress ;)

[inquest]

I don't think you have any basis for making that claim. I'd be interested in seeing you try to back it up somehow.

Okay, then, I'll revist my earlier question, and now I must insist on an answer - where, precisely, do you believe universal truth comes from? What, precisely, do you feel is the source of morality?

HA HA HA! Nice try. But you don't need me to answer anything in order to back up your claim. If you stand by such a claim, then you would already have the information you need to back it up.

Define what it means to "know" something. Once we get round that bend, we may make some further progress ;)

D'Ohh!!! OK, let's see... Would you say that you "know" what pain is?