In 1871, the German philosopher Gustav Teichmüller moved from his Basel chair to the much better paid chair in Tartu, and taught there until his untimely death. Besides philosophy, he had studied various disciplines, including the natural sciences. In the preparation of his own philosophy, he explored the history of philosophy for more than twenty years and made pioneering contributions to the history of concepts. Only by the early-1880s did he begin to elaborate his "new philosophy", an original version of (...) personalism, both anti-idealist and anti-materialist. He did this in three major works which built upon each other. Unwritten remained the keystone of his philosophy, the Philosophie des Christentums, in which Teichmüller wanted to show that the philosophical contents of Christianity were encapsulated by his own personalism. One major objective of his philosophy, as I see it, was regaining reality---in particular the reality of the person---after it had been lost in the wake of the failure of modern representationalism. Notwithstanding its coherentist elements, I see Teichmüller's philosophy as a precursor of direct realism. Although he fell into oblivion soon after, his thoughts were received throughout Europe, notably by Friedrich Nietzsche, Aleksey Kozlov and Nicholas Lossky. His extensive literary remains, which are kept in Basel, remain to be explored. (shrink)

The history of concepts is relevant in philosophy because conceptual distinctions fundamentally shape cognition. Because these conceptual distinctions are deeply entrenched in our way of thinking, we are not usually aware of this influence. How we view the world depends crucially on the concepts we have. These concepts, however, are the products of their history. Following Herbart, Gustav Teichmüller viewed philosophy as the systematic analysis and refinement of concepts. Refining concepts in such a way allows us to make new distinctions, (...) or to transform or abandon old ones. In contrast to Herbart, Teichmüller emphasized that this process presupposes detailed historical studies. This does not mean, however, that Teichmüller embraced a kind of historicism---the view that philosophy and its history are one and the same thing. On the contrary, he derogatorily referred to such a view as "historical psychology". Rather, the history of concepts in Teichmüller's sense has to be understood as a history of problems which are reflected in conceptual distinctions. This means that the history of concepts, which brings to light explicit and implicit distinctions, can be applied as a kind of hermeneutics of world views---as the basis on which we can systematically reconstruct concepts in a new light. It is the aim of this presentation to unfold such an understanding of the history of concepts in view of Teichmüller's contribution to it. (shrink)