"These règles de l’art, hypothetically viewed as acquired patterns of connections, or scaffoldings, stored in long-term memory, include, among others: novelty, the coherence of the parts within the whole (Alberti’s consensus partium), parsimony or the most frugal route of expression (Herbert Simon), the tension between bottom-up realism and top-down abstraction, the search for shared social recognition and the artist’s conception of the world." - Changeux