4 THE ITALIAN LAW JOURNAL NO. 2 (2018) Sustainability and Civil Law by Enrico Caterini The legal system shifts its parameters. Democracy is not only a decision-making instrument, it is also a value. The mandatory commitment of social relations imposed the need for all of us to ensure ‘the minimum subsistence’, with no avoidance for any of us to fulfil the duty of solidarity. Sustainability has become the social analysis of law. DOI 10.23815/2421-2156.ITALJ ISSN 2421-2156