The shield of the Collège de France shows a book resting on a leafy background, with the legend ‘Docet Omnia’ – ‘Everything is taught’ – framed by stars. It is inlaid in the floor of the Collège's main entrance on Rue des écoles in Paris. Elsewhere in the building, Maurice Merleau-Ponty's phrase describing the institution's promotion of experimental, unregulated teaching is carved in large gilded letters into the wall: ‘Ce que le Collège de France, depuis sa fondation, est chargé de donner à ses auditeurs, ce ne sont pas des vérités acquises, c'est l'idée d'une recherche libre’. Roland Barthes taught at the Collège de France from 1977 to 1980 as holder of the Chair of Literary Semiology. He imagined having his own motto for his lectures. Not carven, but effaceable, it would be a sign hung beside the bust of Henri Bergson in the lecture theatre where Barthes lectured on Saturday mornings. The sign would feature a quotation from Montaigne's Essais: ‘Je n'enseigne point. Je raconte’. Montaigne was an enthusiastic adopter of mottoes, having Greek and Latin maxims, many of them drawn from Sceptic texts, cut into the rafters of his study: ‘Iudicio alternare’, he reminded himself, and ‘Que sçay-je?’ The carvings at the Château de Montaigne prioritise inquiry, reflection, and abstention from quick decisions.