Quamdiu stabit Colyseus, stabit et Roma; quando cadet Coly seus, cadet Roma; quando cadet Roma, cadet et mundus (Beda in Excerptis seu Collectaneis apud Ducange Glossar. Med. et Infimæ Latinitatis, tom. ii. p. 407, edit. Basil).
This saying must be ascribed to the Anglo-Saxon pilgrims who visited Rome before the year 735, the era of Bede's death; for I do not believe that our venerable monk ever passed the sea.