Every philosopher must run the gauntlet of time. Philosophical ideas fall in and out of favor, but the acid test is whether we continue to debate a philosopher’s ideas long after they have left the scene. The anniversary of Jean-Paul Sartre’s birthday, almost forty years since his death, is an appropriate moment to look back on the legacy of a philosopher whose work helped to define an era, and whose ideas continue to resonate with the political climate today. Professor Richard Falk places Sartre alongside Noam Chomsky and Edward Said as one of the few individuals worthy of the title ‘public intellectual’. Yet towards the end of his life, even as Sartre moved further in the direction of political engagement, he lamented that his politics were not radical enough; perhaps that is why Sartre’s political philosophy is so highly disputed.