In 1961 the prolific French intellectual Jean-Paul Sartre was invited to give a talk at the Gramsci Institute in Rome. In attendance were some of Italy's leading Marxist thinkers such as Enzo Paci, Cesare Luporini, Galvano Della Volpe and Lucio Colletti, a discussion by whom is reproduced in this volume. Sartre poses the question "what is subjectivity?", a question that is today of renewed importance to contemporary debates around "the subject" in critical theory. This work features a preface by Michel Kail and Raoul Kirchmayr and an afterword by Fredric Jameson where he makes a rousing case for the on-going importance of Sartre's philosophy.