The manuscript is ‘Epître à Margot’ by Pierre Choderlos de Laclos, with the incipit reading ‘Pourquoi craindrais-je de le dire’. The poem expresses the speaker’s contentment with Margot despite her lack of wealth or noble birth. The speaker dismisses societal norms about fortune and lineage, arguing that true happiness in love is found not in material wealth or noble status, but in the genuine connection between individuals.