This informative and thought-provocating book gives an intimate portrait of two major 18th-century French philosophers famous for their influence over modern aesthetics. Their personal reflexions on art, beauty and inventive genius are vividly presented in the context of Parisian artistic institutions during the reigns of Louis XIV, XV and XVI. The book offers a refreshing perspective into the pre-Revolutionary movement of the Enlightenment promoted by Diderot and the pre-Romantic sensibility modelled by Rousseau. This look back into the 18th century is very suggestive in regards to the current philosophies of art and may raise new answers to old questions.