Arthur C. Clarke on faith, from Childhood's End:
"Perhaps the old faiths would have lingered for generations yet, had it not been for human curiosity. It was known that the Overlords had access to the past, and more than once historians had appealed to Karellen to settle some ancient controversy. It may have been that he had grown tired of such questions, but it is more likely that he knew perfectly well what the outcome of his generosity would be…"