This new biography of Francis Jeanson follows the existential philosopher and political activist from his birth in 1922 to his participation in a government "cultural action" program in the late 1960s and '70s. As a young man, Jeanson escaped German-occupied France and joined the Resistance army in Africa. After the war, he pursued a career in France as a writer, philosopher (he was the "chosen disciple" of Jean-Paul Sartre), and editor at the Editions du Seuil. During the French-Algerian War, Jeanson founded the Jeanson Network, which collected and transported funds to support the Algerian side in the conflict. He and members of his network were tried and convicted of breaching the security of the state, but Jeanson was eventually reintegrated into French society. His participation in that historical moment and in controversies both philosophical and political that continue to rage today make for a compelling and pertinent read.