[if the automobile is replaced by public trans port] the social structure of cities will revert to the ecological pattern of 1880.

p. 257 as cited in D.S. Houghton, B.J. Shaw (1982) "The city in an era of restricted car usage: Some further observations and policy responses". In: Geoforum. Vol 13, Issue 1, p. 19–25, - Toward a General Social Science, 1974