First published in 2005. Herbert Marcuse was Martin Heidegger's most famous student. He claimed to have left existentialism behind in 1933 when Heidegger was declared first Nazi rector of Freiburg University and Marcuse fled into exile.The contentious relations between these two thinkers reflected the split in twentieth-century continental philosophy between exist- entialism and Marxism. But Andrew Feenberg's careful study of Heidegger's early lectures,...