Oxford Dictionary of Proverbs, Oxford University Press (2015), p.99
The Adages of Erasmus (selected by William Barker), University of Toronto 2001, pp.83-6
The Alexandreis: A Twelfth-Century Epic, a verse translation by David Townsend, Broadview Editions 2007, p.120, line 350. A footnote in this translation identifies the line as becoming proverbial in Europe.
