Tova Yedlin (1999). Maxim Gorky: A Political Biography. Greenwood Publishing Group. p. 86. ISBN9780275966058. «Gorky had long rejected all organized religions. Yet he was not a materialist, and thus he could not be satisfied with Marx's ideas on religion. When asked to express his views about religion in a questionnaire sent by the French journal Mercure de France on April 15, 1907, Gorky replied that he was opposed to the existing religions of Moses, Christ, and Mohammed. He defined religious feeling as an awareness of a harmonious link that joins man to the universe and as an aspiration for synthesis, inherent in every individual.»
Liukkonen, Petri. «Maxim Gorky». Books and Writers (kirjasto.sci.fi). Finland: Kuusankoski Public Library. Archivado desde el original el 6 de julio de 2009.
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Liukkonen, Petri. «Maxim Gorky». Books and Writers (kirjasto.sci.fi). Finland: Kuusankoski Public Library. Archivado desde el original el 6 de julio de 2009.