…turn into the G minor quartet of Mozart, we really haven't the faintest idea. I mean, I don't think we have any more idea than Aquinas or Aristotle. I mean, all we can say is that it happens. And we do know a good deal more about the nature of the…

…great cathedrals. And yet, if you read the works of any of the contemporary moralists, the people who were contemporaries of Aquinas, contemporaries of the cathedral builders, all of them are agreed that their age is an age of decadence, that never have…