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Hans Vaihinger was an important and fascinating figure in German philosophy in the early twentieth century, founding the well-known journal Kant-studien. Yet he was overshadowed by the burgeoning movements of phenomenology and analytical philosophy, as well as hostility towards his work because of his defense of Jewish scholars in a Germany controlled by Nazism. However, it is widely acknowledged today that The Philosophy of 'As If' is a philosophical masterwork. Vaihinger argues that in the face of an overwhelmingly complex world, (...) we produce a simpler set of ideas, or idealizations, that help us negotiate it. When cast as fictions, such ideas provide an easier and more useful way to think about certain subjects, from mathematics and physics to law and morality, than would the truth in all its complexity. Even in science, he wrote, we must proceed "as if " a material world exists independently of perceiving subjects; in behaviour, we must act "as if " ethical certainty were possible; in religion, we must believe "as if" there were a God. He also explores the role of fictions in the history of philosophy, going back to the ancient Greeks and the work of Leibniz, Adam Smith and Bentham. The Philosophy of 'As If' was a powerful influence on the emerging philosophical movement of pragmatism and was ground-breaking in its anticipation of the central role that model-building and simulation would come to play in the human sciences. This Routledge Classics edition includes a new foreword by Michael Rosenthal, which provides a fascinating and important background to Vaihinger's life and the legacy of The Philosophy of 'As If'. (shrink)

In his 1905 work on the logical foundations of geometry, Royce proposed a logic based on the “obverse” or O-relation that could provide a means of understanding any system of order. Royce explains that this relation, which he calls the O-relation, “in logical terms,... is the relation in which (if we were talking of the possible chances [choices] open to one who had to decide upon a course of action) any set of exhaustive but, in their entirety, inconsistent choices would (...) stand to one another” (Royce, 1951, 385). This focus on the process of making choices turns on the idea that the action of making a choice produces an asymmetrical relation and so a key part of Royce’s project was to demonstrate the.. (shrink)

It is an honor to participate in this commemoration of the centenary of the death of Josiah Royce. The commemoration provides an occasion for revisiting and reinterpreting Royce to find his continued significance. Once relegated to the margins of American philosophy, a growing group of scholars has been turning to Royce in recent years. The centenary provides an opportunity to reflect on the nature of the interest in Royce.1The first celebration of the body of Royce’s work took place on the (...) occasion of the philosopher’s 60th birthday.2 The American Philosophical Association devoted its 50th annual meeting in December 1915, in Philadelphia to a review of Royce’s life and work. Royce had served as the... (shrink)

This article investigates the history of the relation between idealism and pragmatism by examining the importance of the French idealist Charles Renouvier for the development of William James's ‘Will to Believe’. By focusing on French idealism, we obtain a broader understanding of the kinds of idealism on offer in the nineteenth century. First, I show that Renouvier's unique methodological idealism led to distinctively pragmatist doctrines and that his theory of certitude and its connection to freedom is worthy of reconsideration. Second, (...) I argue that the technical vocabulary and main structure of the argument from the ‘Will to Believe’ depend upon Renouvier's idealist theory of knowledge and psychology of belief, and that taking account of this line of influence is of crucial importance for establishing the correct interpretation of James's work. (shrink)