^Chapters in Western civilization, Volume 1. Columbia University Press. 2012. hlm. 465. Holbach carried the cult of reason and nature to its culmination in an atheistic denial of the deists' Supreme Being, and made the most influential attack on rational religion ...
^M. Baker, Keith (1987). University of Chicago Readings in Western Civilization, Volume 7: The Old Regime and the French Revolution. University of Chicago Press. hlm. 384. ISBN978-0226069500. In May, he proposed an entire cycle of revolutionary festivals, to begin with the Festival of the Supreme Being. This latter was intended to celebrate a new civil religion as opposed to Christianity as it was to the atheism of the extreme dechristianizers (whose earlier Cult of Reason Robespierre and his associates had repudiated).
^McGrath, Alister (2008). The Twilight Of Atheism: The Rise and Fall of Disbelief in the Modern World. Random House. hlm. 45. ISBN978-1407073767. He was an active member of the faction that successfully campaigned for the atheistic 'Cult of Reason', which was officially proclaimed on November 10, 1793.