"Steven Pinker: 'Artists used to gush about the beauty of war. The First World War put an end to that'". Interview with Clint Witchalls, www.independent.co.uk. 10 November, 2011.
Francis Quarles (1844). “Enchiridion Institutions, Essays and Maxims, political, moral & divine. Divided into four centuries. By Francis Quarles”, p.15