Founded in 1888 by Edward C. Hegeler, The Monist is one of the world’s oldest and most important journals in philosophy. Under the editorships of Paul Carus (1890-1919) and Mary Carus (1919-36), the Monist helped establish philosophy as an academic discipline in the United States, publishing papers, inter alia, by Ernst Cassirer, John Dewey, Christine Ladd-Franklin, Susanne Langer, C.I. Lewis, Ernst Mach, Otto Neurath, C.S. Peirce, Henri Poincaré, Bertrand Russell, and Victoria Welby, as well as some of the first translations of Frege and Hilbert into English.

After Mary Carus died, the journal ceased publication until 1962, since which time it has continued to support the development of the discipline, publishing papers by many notable and influential philosophers, including G.E.M. Anscombe, D.M. Armstrong, Roderick Chisholm, Ruth Barcan Marcus, Philippa Foot, Hans-Georg Gadamer, P.T. Geach, Mary Hesse, Sydney Hook, Hilary Putnam, W.V. Quine, Richard Rorty, P.F. Strawson, Wilfred Sellars, Judith Jarvis Thompson, and Gregory Vlastos.

Since 1962, The Monist has published quarterly thematic issues, edited by experts in their fields, providing a variety of different perspectives upon specific themes.

The Monist is published by Oxford University Press.