is a philosopher, dramaturg, novelist, and mathematician. He taught philosophy at the University of Paris VIII (Vincennes-Saint Denis), at the École Normale Supérieure, and at the Collège international de philosophie. He is the author of several novels and plays as well as more than a dozen philosophical works.
is a philosopher and philologist. She is director of the CNRS (Centre national de la recherche scientifique) and of the Centre Léon Robin at Sorbonne-IV Paris.