———. 1931. In PAW, p. 235. Described also in Pais 1982, p. 288.

———. 1934. “On the Method of Theoretical Physics.” Philosophy of Science, 1 (2), 163.

———. 1949. “Remarks Concerning the Essays Brought Together in this Co-operative Volume.” In Albert Einstein: Philosopher-Scientist. Edited by P. A. Schilpp (Evanston, IL: Library of Living Philosophers).

———. 1955. The Meaning of Relativity, 5th ed. Including the Relativistic Theory of the Non-Symmetric Field (Princeton, NJ: Princeton University Press).

———. 1966. The Meaning of Relativity, 5th ed. Including the Relativistic Theory of the Non-Symmetric Field (Princeton, NJ: Princeton University Press).