Horace Meyer Kallen was born on August 11, 1882, in the town of Bernstadt, Austrian Silesia (now Bierutów, Lower Silesian Voivodeship, Poland). His parents were Jacob David Kallen, an Orthodox rabbi, and Esther Rebecca Glazier. In 1887, the family emigrated to the United States. Kallen studied philosophy at Harvard University under George Santayana; in 1903, he received a BA magna cum laude.
That same year, Kallen was personally hired by future American President Woodrow Wilson, then Princeton University's president, to become the first Jew to ever teach at the university. But after teaching English at Princeton for two years, his contract was not renewed, and he returned to Harvard for graduate study and worked as Santayana's assistant. In 1908, Kallen received his doctorate and was awarded a Sheldon Travelling Fellowship to study at Oxford University. He was also a lifetime friend of Alain Locke, whom he met at Harvard and who was the first African-American Rhodes Scholar; and would remain the only one until the 1960s.
He lectured in philosophy at Harvard from his graduation until 1911, occasionally working as a logic instructor at Clark College in Worcester, Massachusetts. In 1911, he moved to teach philosophy at the University of Wisconsin–Madison until 1918, when he was named a professor at The New School in New York City as a founding member, where he remained for the rest of his career. By 1933, Kallen and his colleague Sidney Hook were serving on the ACLU's academic freedom committee.
A pluralist, Kallen opposed any oversimplification of philosophical and vital problems. According to Kallen, denying complications and difficulties is to multiply them, as much as to deny reality to evil would aggravate evil. Kallen advanced the ideal that cultural diversity and national pride were compatible with each other and that ethnic and racial diversity strengthened America. His critics pointed out his disingenuousness since, as a Jewish intellectual and member of the Zionist Organization of America, his vision of multicultural America was quite the opposite of his vision of the Jewish state of Israel as a totally Jewish nation. Kallen is credited with coining the term cultural pluralism.
He was acquainted with William James, whose last unfinished book he edited. In 1939 he became acquainted with Immanuel Velikovsky and became a lifelong friend, informal literary advisor, mentor, and advocate. He was a member of the American Philosophical Society, the Western Philosophical Society, the Society for Psychical Research, the Zionist Organization of America, the Palestine Development Council, and the National Council of the League of Nations Association. He served on congressional committees on international peace and was a part of many think tanks and study groups on questions ranging from philosophy and law to labor relations.
- Democracy Versus the Melting-Pot, 1915.
- Zionism and World Politics, William Heinemann, 1921.
- Indecency and the Seven Arts:And Other Adventures of a Pragmatist in Aesthetics, 1930.
- College Prolongs Infancy, John Day (1932)
- Decline and Rise of the Consumer, 1936. (via archive.org)
- Art and Freedom, 1942.
- Modernity and Liberty, 1947.
- The Liberal Spirit, 1948.
- Ideals and Experience, 1948.
- The Education of Free Men, 1950.
- Patterns of Progress, 1950.
- "Of Them Which Say they Are Jews,": and Other Essays on the Jewish Struggle for Survival, Bloch Pub. Co., 1954.
- Cultural Pluralism and the American Idea, 1956.
- Utopians at Bay, 1958. (via archive.org)
- Liberty, Laughter, and Tears, 1968.
- Creativity, Imagination, Logic: Meditations for the Eleventh Hour, 1973.
- "Socrates and the Street Car," The Mid-West Quarterly, Vol. 1, No. 4, July 1914.
- "Democracy Versus the Melting-Pot: A Study of American Nationality," Part II, The Nation, Feb. 25, 1915.
- "Philosophers," The American Mercury, December 1926.
- "The Hither of the Beyond," The Bookman, February 1928.
- "Fear, Freedom, and Massachusetts," The American Mercury, November 1929.
- "American Philosophy Today and Tomorrow" with Sidney Hook in Journal of Philosophy (1936)
- "Toward the Four Freedoms," The Saturday Review, May 23, 1942.
- "The War Against the Chain-Gang of Production," The Saturday Review, September 9, 1944.
- "Freedom and Experience" with Sidney Hook and Milton R. Konvitz in Philosophical Review (1948)
- "How I Bet My Life" in Saturday Review (October 1, 1966)
Bibliography: See special "Symposium on Horace M. Kallen" in Modern Judaism, Vol. 4, No. 2. (May, 1984)
- "Dr. Horace Kallen, Philosopher, Dies". The NY Times. February 17, 1974. Retrieved 24 January 2018.
- Berg, A. Scott (2013). Wilson. New York, NY: G.P. Putnam's Sons. p. 158. ISBN 978-0-399-15921-3.
- Lamont, C., ed. Dialogue on George Santayana. New York: Horizon Press (1959) 13-17.
- Louis Menand. The Metaphysical Club: A Story of Ideas in America. (New York: Farrar, Staus and Girroux, 2001) p. 388
- Gilbert, James (1997). Redeeming Culture: American Religion in an Age of Science, University of Chicago Press. ISBN 0-226-29320-3. Chap. 8, Two Men of Science, p. 175, namely Harlow Shapley and Kallen.
- "Oppose Teachers' Oath". New York Times. 9 April 1933. p. N3. Retrieved 14 October 2018.
- Gilbert, James (1997). Redeeming Culture: American Religion in an Age of Science, University of Chicago Press. ISBN 0-226-29320-3. Chap. 8, Two Men of Science, pp. 177-181, namely Harlow Shapley and Kallen.
- Fishman, Donald A. "Mainstreaming Ethnicity: Horace Kallen, the Strategy of Transcendence, and Cultural Pluralism," Southern Communication Journal 69 (2), 2004.
- Kaufman, Matthew J. "Horace M. Kallen's Use of Evolutionary Theory in Support of American Jews and Democracy," Zygon: Journal of Religion and Science 52 (4), December 2017.
- Konvitz Milton, Ridvas, ed. The Legacy of Horace M. Kallen, Fairleigh Dickinson University Press, 1987.
- Kronish, Ronald. "John Dewey and Horace M. Kallen on Cultural Pluralism: Their Impact on Jewish Education," Jewish Social Studies 44 (2), Spring 1982.
- Maxcy, Spencer J. "Horace Kalien's Two Conceptions of Cultural Pluralism," Educational Theory, 29 (1), January 1979.
- Pianko, Noam. "'The True Liberalism of Zionism': Horace Kallen, Jewish Nationalism, and the Limits of American Pluralism," American Jewish History 94 (4), December 2008.
- Ratner, Sidney. "Horace M. Kallen and Cultural Pluralism," Modern Judaism 4 (2), May 1984.
- Schmidt, Sarah. Horace M. Kallen: Prophet of American Zionism, Brooklyn: Carlson Pub., 1995.
- Toll, William. "Horace M. Kallen: Pluralism and American Jewish Identity," American Jewish History 85 (1), March 1997.
- Zdiara, Kevin. "Inventing Pluralist America," Jewish Ideas Daily, August 8, 2012.