The text was written in 1754 in response to a prize competition of the Academy of Dijon answering the prompt: What is the origin of inequality among people, and is it authorized by natural law? Though he was not recognized by the prize committee for this piece (as he had been for the Discourse on the Arts and Sciences) he nevertheless published the text in 1755.

Discourse on the Origin and Basis of Inequality Among Men (French: Discours sur l'origine et les fondements de l'inégalité parmi les hommes), also commonly known as the "Second Discourse", is a work by philosopher Jean-Jacques Rousseau.

Rousseau first exposes in this work his conception of a human state of nature, presented as a philosophical fiction (like by Thomas Hobbes, unlike by John Locke), and of human perfectibility, an early idea of progress. He then explains the way, according to him, people may have established civil society, which leads him to present private property as the original source and basis of all inequality.

Jean-Jacques Rousseau (1712–1778) was a Genevan philosopher, writer, and composer of the 18th century. His political philosophy influenced the French Revolution as well as the overall development of modern political, sociological, and educational thought.

Rousseau's novel émile, or On Education is a treatise on the education of the whole person for citizenship. His sentimental novel Julie, or the New Heloise was of importance to the development of pre-romanticism and romanticism in fiction. Rousseau's 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, and featured an increased focus on subjectivity and introspection that later characterized modern writing. His Discourse on Inequality and The Social Contract are cornerstones in modern political and social thought.

Rousseau was a successful composer of music, who wrote seven operas as well as music in other forms, and made contributions to music as a theorist. As a composer, his music was a blend of the late Baroque style and the emergent Classical fashion, and he belongs to the same generation of transitional composers as Christoph Willibald Gluck and C.P.E. Bach. One of his more well-known works is the one-act opera Le devin du village, containing the duet "Non, Colette n'est point trompeuse" which was later rearranged as a standalone song by Beethoven.

During the period of the French Revolution, Rousseau was the most popular of the philosophes among members of the Jacobin Club. Rousseau was interred as a national hero in the Panthéon in Paris, in 1794, 16 years after his death.