Filosofo (Cleveland 1873 - Madison, New Hampshire, 1966). Prof. di filosofia a Harvard (dal 1914); il suo "idealismo naturalistico" si riallaccia all'idealismo assoluto di J. Royce. Opere principali: The meaning of God in human experience (1912), Human nature and its remaking (1918), Man and the state (1926), Present status of the philosophy of law and rights (1926), The self: its body and freedom (1928), Types of philosophy (1929), Last ing elements of individualism (1937), Thoughts on death and life (1937), Science and the idea of God (1944), The coming world civilization (1956), Meaning of immortality in human experience (1957), Strength of men and nations (1959).