"I have tried to show that there is nothing in the Marxian theories, or in any of their necessary implications, which the essential principles of religion either explicitly or implicitly oppose or deny. I believe that I have demonstrated this beyond reasonable doubt, and that the open-minded reader will be compelled to acknowledge that Marxism and religion are not mutually exclusive; that there is nothing in the Marxian system of thought which requires a denial of belief in God, the Creator and Moral Ruler of the Universe, or of belief in the immortality of the soul." John Spargo (1876-1966) was a leading socialist writer of the period.. He became identified with the socialists in England in early life, became a leader in the English labor movement; and served on the Executive Council of the Social Democratic Federation. He immigrated to America in 1901 and was thereafter a longtime member of the National Executive Committee of the American Socialist Party. He edited the socialist periodical, The Comrade, became involved in child labor issues; helped promote laws on child and woman labor, and moved to Vermont in 1909. He remained active in socialist circles, but moved to the right over World War I, and with Samuel Gompers and George Creel, founded the American Alliance for Labor and Democracy, in favor of American involvement in the war. He gradually became outspoken advocate of free-market capitalism.