In the first volume, Cassirer explores the symbolic form of language. Already recognized by thinkers in the tradition of German Idealism, such as Wilhelm von Humboldt, language is the primary medium by which we interact with others and form a common world. As Cassirer emphasizes in the famous Davos Debate with Heidegger, 'there is one objective human world, in which a bridge is built from individual to individual. That I find in the primal phenomenon of language.' The famous Cassirer discerns in the functioning of language – the functions of expression ( ), presentation ( ), and signification ( ) – has become paradigmatic for accounts of language, philosophical, linguistic, and anthropological alike." Sebastian Luft, Professor of Philosophy, Marquette University, USA. This new translation makes Cassirer’s seminal work available to a new generation of scholars. Each volume includes a translator’s introduction by Steve G. Lofts, a foreword by Peter E. Gordon, a glossary of key terms, and an index.