 This historical complexity has given rise to some difficulty in assessing Diderot’s writings according to the disciplinary canon of modern philosophy. Condillac, Helvétius, and d’Holbach are the Enlightenment philosophes most commonly studied within philosophy departments because their writings appear to conform better with conventional understandings of what philosophy should look like as a genre and a linguistic idiom. By contrast, the works of Diderot tend to be studied only in literature or history departments. This is unfortunate, for the treatment of Diderot’s philosophie as something different from modern philosophy has cut contemporary philosophers off from the work of one of the most sophisticated, subtle, and complex philosophical thinkers of the eighteenth century.