Thomas Carlyle, Rodger L. Tarr, Mark Engel (2000). “Sartor Resartus: The Life and Opinions of Herr Teufelsdröckh in Three Books”, p.216, Univ of California Press
Robert Southey (1832). “On Sir Francis Burdett's motion for parliamentary reform.-On the conduct of the war.-On the cry of the Whigs for peace, 1810.-Army and navy reforms, 1810.-On the economical reformers, 1811.-On the state of the poor.-The principle of Mr. Malthus's essay on population.-The manufacturing system, 1812.-On the state of the poor.-On the accounts of England by foreign travellers and the state of public opinion, 1816.-On the state of public opinion and the political reformers, 1816.-v.2 A letter to Will”, p.235