Albert Einstein (2015). “Bite-Size Einstein: Quotations on Just About Everything from the Greatest Mind of the Twentieth Century”, p.56, St. Martin's Press
Address to the symposium "The Social Task of the Scientist in the Atomic Era" at the Institute for Advanced Study in Princeton, New Jersey, November 17, 1946.
Albert Einstein (2015). “Bite-Size Einstein: Quotations on Just About Everything from the Greatest Mind of the Twentieth Century”, p.57, St. Martin's Press