Mill - Paperbackby Frederick Rosen (Author) Frederick Rosen presents an original study of John Stuart Mill's moral and political philosophy, which explores the main themes of his writings particularly those that emerge from the two major works, System of Logic (1843) and Principles of Political Economy (1848). From these, Mill developed the more widely read later essays, On Liberty (1859), Utilitarianism (1861), Considerations on Representative Government (1861), and