Ralph Cudworth (1820). “The True Intellectual System of the Universe: Wherein All the Reason and Philosophy of Atheism is Confuted, and Its Impossibility Demonstrated”, p.322
Henry David Thoreau (2017). “Journeys, Adventures & Life in Harmony with Nature – 6 Book Collection (Illustrated): Including Walden, A Week on the Concord and Merrimack Rivers, The Maine Woods, Cape Cod, A Yankee in Canada & Canoeing in the Wilderness - North American Highlands Series”, p.270, e-artnow
Henry Mayhew (1851). “London Labour and the London Poor: A Cyclopaedia of the Condition and Earnings of Those that Will Work, Those that Cannot Work, and Those that Will Not Work”, p.157