The Death and Life of Great American Cities

"...does not mean a city can be mapped out in segments of about a square mile, the segments defined with boundaries, and districts thereby brought to life. It is not boundaries that make a district, but the cross-use and life." (Jacobs: 132)

"The cross-links that enable to function as a thing are neither vague nor mysterious. They consist of working relationships among specific people, any of them without much else in common than that they share a fragment of geography" (Jacobs: 133)

Jane Jacbos - The Death and Life of Great American Cities