“A representation is a formal system for making explicit certain entities or types of information, together with a specification of how the system does this. And I shall call the result of using a representation to describe a given entity a description of the entity in that representation.”

—  David Marr

Representation and recognition of the spatial organization of three-dimensional shapes, 1978

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David Marr 9
British neuroscientist and psychologist 1945–1980

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