I have known Ingolf Pernice through his writings long before I met him, unfor- givably late in my career, but still in time to influence my thinking, in Frankfurt in 2014. On the occasion of the 100th anniversary of its foundation, the University of Frankfurt was inviting key scholars during the year to look back, to assess the present, to give perspectives for the future. Nobody who ever met Ingolf would doubt that he leaned firmly towards the last. In light of the eminent role of Frankfurt for the development of public law beyond the state, the Faculty of Law and the Cluster of Excellence “The Formation of Normative Orders”, where I was working on my Habilitation, had convened, in June 2014, a workshop analyzing the past, present and future of international and European law.
