Great cities are not like towns, only larger. They are not like suburbs, only denser. They differ from towns and suburbs in basic ways, and one of them is that cities are, by definition, full of strangers.

Jane Jacobs
Jane Jacobs (1916-2006) American-Canadian journalist, author, urban theorist, activist
The Death and Life of Great American Cities, Part 1, ch. 2 (1961)
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