“The dirtier the city, the more disorganized the people.”
“And no matter how serious an environmental problem the automobile poses in today's big city, the horse was dirtier, smelled worse, killed and maimed more people, and congested the streets just as much.”
Source: 1960s - 1980s, MANAGEMENT: Tasks, Responsibilities, Practices (1973), Part 1, p. 317
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Peter F. Drucker 180
American business consultant 1909–2005Related quotes
How Many People Can Live on Planet Earth? (BBC Horizon, 2009)
Source: The Anarchist Cookbook (1971), Chapter Four: "Explosives and Booby Traps".
                                        
                                        Reply to a young actress who asserted that an older actor in a production showed too much affection for the leading man (c. 1910); as reported by Alan Dent in Mrs. Patrick Campbell, p. 78 (1961). 
[horses]Variants: "My dear, I don't care what they do, so long as they don't do it in the street and frighten the horses."
"I don’t mind where people make love, so long as they don't do it in the street and frighten the horses."
"It doesn't make any difference what you do in the bedroom as long as you don't do it in the street and frighten the horses."
"Does it really matter what these affectionate people do, so long as they don't do it on the street and frighten the horses?" 
On the internet, a similar comment regarding politicians has been widely attributed to Victor Hugo, but without any definite sources. It appears to be a modern satirical invention, derived from Mrs. Campbell's statements.
                                    
                                        
                                        http://mikebloomberg.com/en/issues/environment_sustainability/mayor_michael_bloomberg_delivers_planyc_a_greener_greater_new_york 
Environment
                                    
Source: Probe retired generals, Catholic Bishop urges Jonathan https://www.vanguardngr.com/2012/05/probe-retired-generals-catholic-bishop-urges-jonathan/ (21 May 2012)
                                        
                                        "A Skinny Dakota Kid Who Made Good" 
The Illiterate Digest (1924)
                                    
                                        
                                        Once Upon A Time in the East: A Story of Growing up, Chatto & Windus, 2017, page 305 (ISBN 9781784740689). 
Memoir, 2017