John Stuart Mill
John Stuart Mill (1806–1873) was a British philosopher, political economist, and Member of Parliament whose rigorous defense of liberalism, utilitarianism, and individual liberty made him one of the most influential intellectual figures of the nineteenth century. Educated by his father James Mill in an experimental pedagogical program that included Greek at age three, Mill mastered classical languages, political economy, and philosophy before publishing a succession of landmark works: A System of Logic (1843), Principles of Political Economy (1848), On Liberty (1859), Utilitarianism (1861), and The Subjection of Women (1869). His articulation of the 'harm principle'—that individuals should be free to act as they wish unless they harm others—became foundational to liberal political theory. Mill's rigorous development of utilitarian ethics, his arguments for freedom of thought and discussion, his analysis of the subjection of women, and his methodological contributions to inductive logic established him as a pivotal figure in nineteenth-century liberalism and utilitarian philosophy.
