Jean-Jacques Rousseau (1712-1778) was a major Genevan philosopher, writer, and composer of the Enlightenment, whose political philosophy influenced the French Revolution and the development of liberal, conservative, and socialist theory. He also made important contributions to music as a theorist and a composer. He was secretary to the French ambassador in Venice from 1743 to 1744. His most noted work was an article on political economy written in 1755. In the same year, Rousseau completed his second major work, the Discourse on the Origin of Inequality Among Men. In 1761, he published the successful romantic novel Julie, ou, La Nouvelle Héloïse (The New Heloise). In 1762, he published two major books: The Social Contract and Émile, or, On Education. In 1772, he was invited to present recommendations for a new constitution for the Polish-Lithuanian Commonwealth, resulting in the Considerations on the Government of Poland, which was to be his last major political work. In 1776 he completed Dialogues: Rousseau Judge of Jean-Jacques and began work on the Reveries of the Solitary Walker.