'I am reminded of Ruskin's phrase about the walls and fortifications of Fribourg - "creeping up the hills in a stealthy cat-like way." What beautiful little drawings he himself made of them! The audacity of the buildings is wonderful! For though the sheer cliffs seem of a soft sandstone, yet the bulk of the houses are built on the extreme edge of them, over the river; and with them the enormously solid towers, in one case making an almost straight line! And its extreme picturesqueness the result of the fear of its enemies!' (Diary, 16th May, 1909).