Temple of Reason

This "religion" was supposed to be universal and to spread the ideas of the revolution, summarized in its "Liberté, égalité, fraternité" motto, which was also inscribed on the Temples.

[1] For instance, at the Notre-Dame Cathedral in Paris, on 10 November 1793, a special ritual was held for the "Feast of Reason": the nave had an improvised mountain on which stood a Greek temple dedicated to Philosophy and decorated with busts of philosophers.

The ceremony included the crowd paying homage to an opera singer dressed in blue, white, red (the colours of the Republic), personifying the Goddess of Liberty.

[1] After Catholicism was banned in 1792, many of its churches were turned into Temples of Reason, including: In the spring of 1794, the Cult of Reason was faced with official repudiation when Robespierre, nearing complete dictatorial power during the Reign of Terror, announced his own establishment of a new, deistic religion for the Republic, the Cult of the Supreme Being.

[3][4] English theologian Thomas Hartwell Horne and biblical scholar Samuel Davidson write that "churches were converted into 'temples of reason,' in which atheistical and licentious homilies were substituted for the proscribed service".