The "figurative system of human knowledge" (French: Système figuré des connaissances humaines), sometimes known as the tree of Diderot and d'Alembert, was a tree developed to represent the structure of knowledge itself, produced for the Encyclopédie by Jean le Rond d'Alembert and Denis Diderot.
Notable is the fact that theology is ordered under philosophy. The historian Robert Darnton has argued that this categorization of religion as being subject to human reason, and not a source of knowledge in and of itself (revelation), was a significant factor in the controversy surrounding the work.[1] "Knowledge of God" is only a few nodes away from divination and black magic.
^Robert Darnton, "Philosophers Trim the Tree of Knowledge: The Epistemological Strategy of the Encyclopedie," The Great Cat Massacre and Other Episodes in French Cultural History (New York: Basic Books, Inc., 1984), 191-213.
Further reading
Robert Darnton, "Epistemological angst: From encyclopedism to advertising," in Tore Frängsmyr, ed., The structure of knowledge: classifications of science and learning since the Renaissance (Berkeley, CA: Office for the History of Science and Technology, University of California, Berkeley, 2001).
Adams, David (2006) 'The Système figuré des Connaissances humaines and the structure of Knowledge in the Encyclopédie', in Ordering the World, ed. Diana Donald and Frank O'Gorman, London: Macmillan, p. 190-215.
Preliminary discourse to the Encyclopedia of Diderot, Jean Le Rond d'Alembert, translated by Richard N. Schwab, 1995. ISBN0-226-13476-8