In 1761, Jean-Jacques Rousseau published 'Julie, or the New Heloise,' an epistolary novel that became an immense success across Europe. The novel explores themes of love, virtue, nature, and moral conflict, resonating deeply with the sentiments of the Enlightenment. Rousseau's work not only captivated readers but also influenced literary and philosophical thought, marking a significant moment in the development of modern literature.

Julie intensified the cult of sensibility and made emotional sincerity a literary force. Its influence reached Romantic poetry by elevating private feeling, landscape and moral authenticity.