Jean-Jacques Rousseau (June 28, 1712 - July 2, 1778) was a Swiss philosopher, writer, and composer of 18th century Romanticism of French expression. His political philosophy influenced the French Revolution as well as the overall development of modern political, sociological and educational thought. His novel ?mile: or, On Education is a treatise on the education of the whole person for citizenship. His autobiographical writings, his Confessions, which initiated the modern autobiography, and his Reveries of a Solitary Walker, exemplified the late 18th century movement known as the Age of Sensibility. His Discourse on the Origin of Inequality and his On the Social Contract are cornerstones in modern political and social thought. He was a successful composer of music. He wrote seven operas as well as music in other forms, and he made contributions to music as a theorist. During the period of the French Revolution, Rousseau was the most popular of the philosophers among members of the Jacobin Club. There is little doubt that for the last ten or fifteen years of his life, Rousseau was not wholly sane. His final years were largely spent in deliberate withdrawal. He suffered a hemorrhage and died in 1778 at the age of 66, and was interred as a national hero in the Panth矇on in Paris, in 1794, 16 years after his death.