At times I am struck by just how little we know (and I don't even put much emphasis on the "know"). I work, inter alia, in philosophy of time and I can't answer my six-year-old's questions about the nature of time. We humans really aren't very smart at all, except at asking questions.
It is not surprising that our ability to ask questions would outpace our ability to find answers. But it is, I think, surprising just how far it outpaces it.
And yet we can know the important thing: that we are made to know and love God.