In Bertrand Russell's 1903 Principles of Mathematics, he offers an apparently devastating criticism of the neo-Kantian Hermann Cohen's Principle of the Infinitesimal Method and its History (PIM). Russell's criticism is motivated by his concern that Cohen's account of the foundations of calculus saddles mathematics with the paradoxes of the infinitesimal and continuum, and thus threatens the very idea of mathematical truth. This paper defends Cohen against that objection of Russell's, and argues that properly understood, Cohen's views of limits and infinitesimals (...) do not entail the paradoxes of the infinitesimal and continuum. Essential to that defense is an interpretation, developed in the paper, of Cohen's positions in the PIM as deeply rationalist. The interest in developing this interpretation is not just that it reveals how Cohen's views in the PIM avoid the paradoxes of the infinitesimal and continuum. It also reveals some of what is at stake, both historically and philosophically, in Russell's criticism of Cohen. (shrink)

This article focuses on two developments in nineteenth-century (philosophy of) social science: Moritz Lazarus’s and Heymann Steinthal’s Völkerpsychologie and Georg Simmel’s early sociology of knowledge. The article defends the following theses. First, Lazarus and Steinthal wavered between a “strong” and a “weak” program for Völkerpsychologie. Ingredients for the strong program included methodological neutrality and symmetry; causal explanation of beliefs based on causal laws; a focus on groups, interests, tradition, culture, or materiality; determinism; and a self-referential model of social institutions. Second, (...) elements of the weak program were the blurring of explanatory and normative interests, an emphasis on freedom of the will, and antirelativism and antimaterialism. Third, later research projects keeping the label “Völkerpsychologie” followed the weak program. Fourth, in the 1880s and 1890s, Simmel tried to build on some of the elements of the strong program. Finally, and fifth, part of the explanation for why Simmel did not succeed in his attempt had to do with the social-political situation of German academia around 1900. (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)

Some commentators on Hermann Cohen have remarked on what they take to be a puzzle about the origins of his mature anti-psychologism. When Cohen was young, he studied a kind of psychology, the Völkerpsychologie of Moritz Lazarus and Heymann Steinthal, and wrote apparently psycholgistic accounts of knowledge almost up until the moment he first articulated his anti-psychologistic neo-Kantianism. To be sure, Cohen's mature anti psycholgism does constitute a rejection of certain central commitments of Völkerpsychologie. However, the relation between Völkerpsychologie and (...) Cohen's mature anti-psychologism is not one of straightforward opposition. This paper argues that Cohen had significantly less distance to travel than it appears to get from his early Völkerpsychologie to his mature anti-psychologism. In particular, this paper argues that Cohen always had an anti-psychologistic account of knowledge, even during the period when he was studying Völkerpsychologie, and further, that key features of his Völkerpsychologie partly shaped his mature account of knowledge. Finally, the paper identifies how Cohen’s views did change over the transition from his völkerpsychological period to his later anti-psychologism. It thus identifies what changes in Cohen’s views do need to be explained. (shrink)

Hermann Cohen′s passionate philosophizing begins with a departure from the letter of the rabbinical doctrine of revelation. Initially his Science of Reason is shaped by a psychology of language based on Plato, Herder, Humboldt, and Steinthal. Later the influence of Kant is prevalent. In the end Cohen′s System of Philosophy becomes the foundation upon which he reappropriates the sources of Judaism in their literalness. His program from 1908/09 onwards is to “think the uniqueness of God as it must be felt.” (...) A distinctive metaphorics comes into being: a hermeneutics of being human anchored in Reason through comparison with an incomparable God. The critical edition of his works illuminates this philosophical process by means of details previously not taken into account. (shrink)

while no one was looking, contextualism replaced rational reconstructionism as the dominant methodology among English-speaking early modern historians of philosophy. In this paper, I expose the contours of this silent revolution, show that rational reconstructionism is a thing of the past among early modern historians, and examine the current state of early modern scholarship.1 As the contextualist revolution has increasingly widened our perspective and revealed the period’s philosophical diversity, it has encouraged early modernists to develop new skills and expertise. I (...) propose here that current early modern historians are devoted to maximize... (shrink)

This book is the first complete intellectual biography of Hermann Cohen and the only work to cover all his major philosophical and Jewish writings. Frederick C. Beiser pays special attention to all phases of Cohen's intellectual development, its breaks and its continuities, throughout seven decades. The guiding goal behind Cohen's intellectual career, he argues, was the development of a radical rationalism, one committed to defending the rights of unending enquiry and unlimited criticism. Cohen's philosophy was therefore an attempt to defend (...) and revive the Enlightenment belief in the authority of reason; his critical idealism an attempt to justify this belief and to establish a purely rational worldview. According to this interpretation, Cohen's thought is resolutely opposed to any form of irrationalism or mysticism because these would impose arbitrary and artificial limits on criticism and enquiry. It is therefore critical of those interpretations which see Cohen's philosophy as a species of proto-existentialism or Jewish mysticism. Hermann Cohen: An Intellectual Biography attempts to unify the two sides of Cohen's thought, his philosophy and his Judaism. Maintaining that Cohen's Judaism was not a limit to his radical rationalism but a consistent development of it, Beiser contends that his religion was one of reason. He concludes that most critical interpretations have failed to appreciate the philosophical depth and sophistication of his Judaism, a religion which committed the believer to the unending search for truth and the striving to achieve the cosmopolitan ideals of reason. (shrink)

Analyzes the philosophical ideas of two famous neo-Kantian philosophers, Hermann Cohen and Paul Natorp, who worked together in the Marburger Schule research institute from 1880 to 1912. In volume 1, mentions differences of opinion between them, partly due to Cohen's Jewishness, noting that Cohen resented the prevalence of antisemitism and discrimination. Cohen felt that Natorp's opposition to his ideas was motivated by antisemitism. The second volume is a collection of documents and correspondence between the two and others, where antisemitism is (...) frequently mentioned (see the index). (shrink)

Versucht man die philosophische Entwicklung von Hermann Cohen zu überblicken, so sticht ins Auge, dass er genuin rationalistischen Überzeugungen immer näher rückt. Welche Bedeutung dabei der Philosophie von Leibniz für die Entwicklung einer rein idealistischen Urteilslogik zukommt, ist bekannt. Ich denke aber darüber hinausgehend, dass Cohens Ansatz im Verlauf der Jahre ganz zentralen erkenntnistheoretischen Grundintuitionen des klassischen Rationalismus immer näher kommt.