"The city" is not a framework but a social practice in constant flux the more it becomes an issue, the more it is a source of contradictions and the … - Manuel Castells

By social movements we mean a certain type of organisation of social practices, the logic of whose development contradicts the institutionally dominant social logic

The way people think determines the fate of norms and values on which societies are constructed. While coercion and fear are critical sources for imposing the will of the dominants over the dominated, few institutional systems can last long if they are predominantly based on sheer repression.

[Urban planning] must be interpreted on the basis of the social effect produced by the political instance in the urban system and/or in the social structure.