The term “fraternity” has been clearly linked to a register that could be called romantic. This explains the desire to distinguish the word from others like “solidarity” and “justice” and in particular “equality”.
In 1973, he received his doctorate with a dissertation on Kant. Nancy was then promoted to Maître de conférences at the Université des Sciences Humaines de Strasbourg. In the 1970s and 1980s, Nancy was a guest professor at universities all over the world. In 1987, Nancy received his Docteur d’état which was published 1988 as L’expérience de la liberté.