"The catalogue of forms is endless: until every shape has found its city, new cities will continue to be born. When the forms exhaust their variety and come apart, the end of cities begins"

This quote by Italo Calvino speaks to the concept that cities are continuously developing and changing. He recommends that cities are substantiated of the variety of forms that exist worldwide, which as long as these types remain varied, cities will continue to be born. He implies that when the kinds end up being tired and no longer have variety, completion of cities will start. This suggests that cities depend on the range of types that exist in the world, which without this range, cities will disappear. This quote talks to the concept that cities are constantly changing and developing, which they depend on the range of types that exist worldwide.