The essay Lettre à d'Alembert sur les spectacles , first published in 1758, was written by Jean-Jacques Rousseau as a response to the essay Geneva by Jean d'Alembert which appeared in the Encyclopédie. d'Alembert proposed to establish a theatre in Geneva. Rousseau opposed the idea, arguing that the move would harm the city’s delicate social fabric.

Emile , the greatest philosophical essay of Jean-Jacques Rousseau, is considered a masterpiece not only in educational thought but also social and political philosophy.