Respect for language, as everyone acknowledges, is a constant of French culture. It is no less clear, however, that the appraisal of language and of its powers and the notion formed of its essential nature vary from epoch to epoch. Intense philosophical, scientific and literary preoccupation with language and the age-old problems it raises is undoubtedly one of the most significant characteristics of pre-romanticism. The traditional respect for language, manifest İn discussions of inversion and of the importance of signs in the formation of ideas, is gradually transformed, when these discussions have run their course, into a cult of language in general and of the word in particular. Indeed, by much insistence on the primordial importance of language in the act of knowledge, thinkers such as Locke and Condillac, and after them Voltaire, Diderot, Maupertuis, Rousseau, Garat, and many others, eventually endow the instrument of thought with an autonomy that thought itself, subjugated by matter, was in danger of losing. “ Ah! Monsieur “, exclaims Diderot, combien notre entendement est modifi・ par les signes.” Minds seem to pass, at this critical moment of European reflection, from a purely intellectual conception of language—which, moreover, the Grammaire de Port-Royal barely distinguished from logic—to a mythological conception of its principal functions.