The essay starts by focusing on some of the Charters of fundamental rights, by stressing their sovra-contextual and diachronical aspects. This last point constitutes the core of the subsequent parts, in which it is explored an attempt for grounding the duty of justice for future generations. By exploring the pragmatic efficacy of some objections to such a duty, the essay develops a con-structivist strategy, devoted to address intragenerational and intergenerational duties as equal claims of justice. On the one hand, is it articulated the comprehensive claim for intergenerational altruism, as a result of an incremental normative commitment. On the other, it is explored the legitimacy of a unique normative bond that offers the possibility of a robust foundation of the duty of justice among generations, by linking the pragmatic effort to accomplish unavoidable intragenerational obligations with the normative claim in favour of unavoidable intergenerational ones.
