For the first time in my life I was confronted by the phenomenon of audible silence. When we had climbed the first flight of stairs, I added another discovery to my limited knowledge of natural phenomena—that of tangible darkness. A match showed us where the upward road continued. We went to the next floor and then to the next and the next until I had lost count and then there came still another floor, and suddenly we had plenty of light.The author of this passage would probably agree that