Karl Popper – The Formative Years, 1902–1945: Politics and Philosophy in Interwar Vienna

Karl Popper (1902–1994) is one of this century’s most influential philosophers, but his life in fin-de siècle and interwar Vienna, and his exile in New Zealand during World War II, have so far remained shrouded in mystery. This intellectual biography recovers the legacy of the young Popper; the progressive, cosmopolitan, Viennese socialist who combated fascism, revolutionized the philosophy of science, and envisioned the Open Society. Malachi Hacohen delves into his archives (as well as the archives of his colleagues) and draws a compelling portrait of the philosopher, the assimilated Jewish intelligentsia, and the vanished culture of Red Vienna, which was decimated by Nazism. Hacohen’s adventurous biography restores Popper’s works to their original Central European contexts and, at the same time, shows that they have urgent messages for contemporary politics and philosophy.

• The first biography of the young Karl Popper in roles previously unknown: socialist reformer and revolutionary philosopher • Recovers the vanished culture of interwar Vienna which was destroyed by the Nazis • Shows how Popper’s philosophy can have contemporary relevance

Introduction; 1. Progressive philosophy and the politics of Jewish assimilation in Late Imperial Vienna; 2. The Great War, the Austrian Revolution, and communism; 3. The early 1920s: school reform, socialism, and cosmopolitanism; 4. The pedagogic institute and the psychology of knowledge, 1925–28; 5. The philosophical breakthrough, 1929–32; 6. The Logic of Scientific Discovery and the philosophical revolution; 7. Red Vienna, the ‘Jewish Question’, and emigration, 1936–37; 8. Social science in exile, 1938–39; 9. The Open Society, 1940–42; 10. The rebirth of liberalism in science and politics, 1943–45.

‘Malachi Hacohen has written an exciting book, which will be the starting-point for any future work on the development of Karl Popper’s ideas. For those with an interest in Popper, the book is a must. It should also be of immense interest to all those concerned with the history of philosophy and, more generally, of ideas in the twentieth century. Hacohen’s work combines detailed archival research with engagement of Popper’s politics and philosophy and an ability to write in an interesting and provocative manner. An essential purchase.’

– Jeremy Shearmur, Australian National University