While at the Opéra, Nourrit received consistent positive reviews for his performances and his popularity led to his appointment as the "professeur de déclamation pour la tragédie lyrique" at the Conservatoire de Paris in 1827. He had many successful students, including the dramatic soprano Cornélie Falcon. In addition, he was concerned more broadly with the social aspects of singing, particularly with the "missionary" role of the performer. In the early 1830s, he embraced the ideas of Saint-Simonianism and dreamed of founding a grand "opéra populaire" which would introduce operatic works to the masses.