Another important tack to take: "OK I don't know in detail where love and the feeling that some things are wrong and some things are right come from. I do know from human history that humans have been wrong about things that felt very right to them: about the earth being flat, the earth being at the center of the universe, the sun going around the earth, the stars being pinprick sources of light in a "celestial sphere" that surrounded us, to mention a very small number. So I DO know that believing in something because it "feels right" is at best a crap shoot, and more likely a recipe for being wrong.

It might sound like you're equivocating right /wrong‘factually correct/incorrect’ and right/wrong ‘morally good/bad’. You aren't, but you'd better use false and true rather than right and wrong in the first sentence to avoid confusion.