Jean-Paul in the light of Sartre's century

In the end of the 1960s France witnessed the response of the younger generation of philosophers to the leftist ideologies of 1968, as well as to the "intellectual models" of that time: Sartre, Lévi-Strauss, Lacan etc. It was from this response that the so called "new philosophy" raised. Among them also B.-H. Lévy, who later, as a mature philosopher , in spite of having suppressed his model J.-P. Sartre returned to him in his remarkable biography. The question than is: Which Sartre - then there were more than one Sartre: Sartre as the author of Nausea is not identical with Sartre as a follower of Stalinism - and how could he substantiate the whole century, which was a century of seething of ideas, events mostly tragic, challenges, defeats, which all are constitutive of our modernity?