““Father's face was buried in early summer flowers. There was something gruesome about the utter freshness of those flowers. It was as though they were peering down into the bottom of a well. For a dead man's face falls to an infinite depth beneath the surface which the face possessed when it was alive, leaving nothing for the survivors to see but the frame of a mask; it falls so deep, indeed, that it can never be pulled back to the surface. A dead man's face can tell us better than anything else in this world how far removed we are from the true existence of physical substance, how impossible it is for us to lay hands on the way in which this substance exists.””