Widmer sheds light on a neglected aspect of the Western philosophical tradition. Following an era of Hegelianism, the members of the neo-Kantian "Marburg School," such as Friedrich Albert Lange, Hermann Cohen, Rudolf Stammler, Paul Natorp, and Ernst Cassirer defended socialism or left-wing ideals on Kantian principles. In doing so, Widmer breaks with two mistaken assumptions. First, Widmer demonstrates that the left-Hegelian and Marxist traditions were not the only significant philosophical sources of socialist critique in nineteenth-century Germany, as the left-Kantians identified (...) problems of normativity that the left-Hegelians could not adequately address. Second, Widmer challenges the prevailing assumption that the political philosophies developed in the Marburg School can be comprehensively characterized as a unified school of "ethical socialism." By showing that they varied fundamentally regarding their political views and their philosophical foundations of socialism, Widmer fills a gap in the studies of neo-Kantianism that is long overdue. (shrink)

The neo-Kantian Hermann Cohen is famously anti-empiricist in that he denies that sensations can make a definable contribution to knowledge. However, in the second edition of Kant’s Theory of Experience (1885), Cohen considers a proposition that contrasts with both his other work and that of his followers: a Kantian who studies scientific claims to truth—and the grounds on which they are made—cannot limit himself to studying mathematics and logical principles, but needs to also investigate underlying presuppositions about the empirical element (...) of science. Due to his subjectivist approach, Cohen argues, Kant not only failed to explain how scientific observation and experiments are possible, but also misconceived the role of the ideas, particularly the idea of a system of nature. (shrink)