A theory that explained everything else in the whole universe but made it impossible to believe that our thinking was valid would be utterly out of court. For the theory would itself have been reached by thinking, and if thinking were not valid, the theory would of course be itself demolished. It would have destroyed its own credentials. It would be an argument which proved that no argument was sound – a proof that there are no such things as proofs – which is nonsense.”25




25CS Lewis: Miracles P.18 Fount – 1980