Liddell Hart, B. H., Strategy (London: Faber & Faber, 1954), xx.
92
Darwin, C., On the Origin of the Species: By Means of Natural Selection or The Preservation of Favoured Races in the Struggle for Life (1859; New York: Cosimo, 2007), cited in Pfenning and Pfenning, Evolution’s Wedge, 4.
