Michel de Montaigne,
The journal of Montaigne's travels in Italy by way of Switzerland and Germany in 1580 and 1581…
(1903)
“ In sooth we should have been in danger of pushing one another into the abyss, if they had not built between the river and the wayfarers a wall which was continued in places a German league at a stretch. The more lofty of the mountains which stood around us were wild rocks, some in solid masses, some scored and broken up by the passage of the torrents, and some of a kind of shale which let fall below innumerable fragments of astonishing size, wherefore it impressed us that it would be perilous to travel here during a tempest. ”
