Assume for a moment that you know somethinganything at all. If you know it to be true, there must be some reason why. But you have to know that reason too, so there must be some reason you know that reason to be trueand so on. Can't we just keep asking "But why?" over and over again?

Question 2: Is it possible that there are some things that we know, but which we don't need to give reasons forsome things that are self-evident?