Two Treatises of Government (or Two Treatises of Government: In the Former, The False Principles, and Foundation of Sir Robert Filmer, and His Followers, Are Detected and Overthrown. The Latter Is an Essay Concerning The True Original, Extent, and End of Civil Government) is a work of political philosophy published anonymously in 1689 by John Locke. The First Treatise attacks patriarchalism in the form of sentence-by-sentence refutation of Robert Filmer's Patriarcha, while the Second Treatise outlines Locke's ideas for a more civilized society based on natural rights and contract theory.
The Prince (Italian: Il Principe [il ˈprintʃipe]) is a 16th-century political treatise by the Italian diplomat and political theorist Niccolò Machiavelli. From correspondence a version appears to have been distributed in 1513, using a Latin title, De Principatibus (Of Principalities). However, the printed version was not published until 1532, five years after Machiavelli's death. This was done with the permission of the Medici pope Clement VII, but "long before then, in fact since the first appearance of The Prince in manuscript, controversy had swirled about his writings".
Principles of Political Economy (1848) by John Stuart Mill was one of the most important economics or political economy textbooks of the mid-nineteenth century. It was revised until its seventh edition in 1871, shortly before Mill's death in 1873, and republished in numerous other editions. Beside discussing descriptive issues such as which nations tended to benefit more in a system of trade based on comparative advantage (Mill's answer: those with more elastic demands for other countries' goods), the work also discussed normative issues such as ideal systems of political economy, critiquing proposed systems such as communism and socialism. Along with A System of Logic, Principles of Political Economy established Mill's reputation as a leading public intellectual. Mill's sympathetic attitude in this work and in other essays toward contemporary socialism, particularly Fourierism, earned him esteem from the working class as one of their intellectual champions.
De La Démocratie en Amérique (French pronunciation: [dəla demɔkʁasi ɑ̃n‿ameˈʁik]; published in two volumes, the first in 1835 and the second in 1840) is a classic French text by Alexis de Tocqueville. Its title translates as On Democracy in America, but English translations are usually simply entitled Democracy in America. In the book, Tocqueville examines the democratic revolution that he believed had been occurring over the previous several hundred years.In 1831, Alexis de Tocqueville and Gustave de Beaumont were sent by the French government to study the American prison system. In his later letters Tocqueville indicates that he and Beaumont used their official business as a pretext to study American society instead. They arrived in New York City in May of that year and spent nine months traveling the United States, studying the prisons, and collecting information on American society, including its religious, political, and economic character. The two also briefly visited Canada, spending a few days in the summer of 1831 in what was then Lower Canada (modern-day Quebec) and Upper Canada (modern-day Ontario).