Sebastian Luft is Professor of Philosophy at Marquette University, USA. He is the author of Subjectivity and Lifeworld in Transcendental Phenomenology (2011), and is editor (with Søren Overgaard) of The Routledge Companion to Phenomenology (2011).

Editor's Introduction Part 1: Beginnings Introduction: Hermann von Helmholtz (1821-1894) 1. On General Physical Concepts (before 1847) 2. On the Origin and Significance of Geometrical Axioms (1876) 3. The Origin And Meaning of Geometric Axioms (1878) Introduction: Otto Liebmann (1840-1912) 4. Kant's Chief Doctrine and His Chief Mistakes, from Kant and the Epigones (1865) Introduction: Friedrich Albert Lange (1828-1875) 5. The Standpoint of the Ideal, from The History of Materialism (1873) Introduction: Rudolf Hermann Lotze (1817-1881) 6. The World of Ideas, from Logic (1874) Part 2: The Marburg School Introduction: Hermann Cohen (1842-1918) 7. Introduction from The Principle of the Infinitesimal Method and Its History (1883) 8. The Synthetic Principles, from Kant's Theory of Experience (1885) 9. The Relationship of Logic to Physics, from the Introduction to the edition of Lange's History of Materialism (1914) 10. The Discovery of Man as Fellowman, from Religion of Reason Out Of the Sources of Judaism (1918) Introduction: Paul Natorp (1854-1924) 11. On the Objective and Subjective Grounding of Knowledge (1887) 12. Kant and the Marburg School (1912) 13. The Problem of a Logic of the Exact Sciences, from The Logical Foundations of the Exact Sciences (1921) Introduction: Ernst Cassirer (1874 -1945) 14. Hermann Cohen and the Renewal of Kantian Philosophy (1912) 15. Euclidean and non-Euclidean Geometry,from Einstein's Theory of Relativity (1921) 16. The Place of Language and Myth in the Pattern of Human Culture, from Language and Myth (1925) 17. The Problem of the Symbol and Its Place in the System of Philosophy (1927) Part 3: The Southwest School Introduction: Wilhelm Windelband (1848-1915) 18. Critical or Genetic Method? (1883) 19. History and Natural Science (1894) 20. Introduction to the History of Philosophy (1900) 21. Philosophy of Culture and Transcendental Idealism (1910) Introduction: Heinrich Rickert (1863-1936) 22. Concept Formation in History, from The Limits of Concept Formation in Natural Science: A Logical Introduction to the Historical Sciences (1902) 23. Knowing and Cognizing. Critical Comments on Theoretical Intuitionism (1934) Introduction: Emil Lask (1875-1915) 24. Announcement of The Logic of Philosophy and the Doctrine of Categories (1910) 25. The Logic of the Ontological Categories, from The Logic of Philosophy and the Doctrine of Categories (1911) 26. The Boundlessness of Truth, from The Logic of Philosophy and the Doctrine of Categories (1911) Introduction: Hans Vaihinger (1852-1933) 27. General Introduction to The Philosophy of the As-If (1911) 28. The Atom as Fiction, from The Philosophy of the As-If (1911) 29. Things-in-Themselves [as Fiction], from The Philosophy of the As-If (1911) Part 4: Responses and Critiques Introduction: Moritz Schlick (1882-1936) 30. Critical or Empiricist Interpretation of Modern Physics? (1921) Introduction: Rudolf Carnap (1891-1970) 31. Space as Condition for Experience, from Der Raum (1922) Introduction: Edmund Husserl (1859-1938) 32. The Classification of the Sciences According to Windelband's and Rickert's Methods" from Nature and Spirit (1927) Introduction: Martin Heidegger (1889-1976) & Ernst Cassirer 33. The Davos Dispute (1929). Bibliography of Major Neo-Kantian Works in German Bibliography of Major Neo-Kantian Works in English. Index