Published in 1762, it had a profound impact on the approach to the education and upbringing of a child, through infancy, childhood, adolescence and into adulthood. This was partly fuelled by the format – for Rousseau presents before us the boy Emile, taking him through the various stages of life, and as Emile becomes a young man, introducing a female counterpart, Sophie. This device personalises what would otherwise be a more formal philosophical presentation.

Brought up in the household of a powerful Baron, Candide is an open-minded young man whose tutor, Pangloss, has instilled in him the belief that 'all is for the best'. But when his love for the baron's rosy-cheeked daughter is discovered, Candide is cast out to make his own way in the world. And so he and his various companions begin a breathless tour of Europe, South America and Asia, as an outrageous series of disasters befall them - earthquakes, syphilis, a brush with the Inquisition, murder - sorely testing the young hero's optimism.

From the moment of its publication in 1748, The Spirit of the Laws proved to be a controversial work provoking widespread interest. Within three years it had been translated into various European languages - and was swiftly added to the List of Prohibited Books by the Roman Catholic Church. It is a remarkable book, a potpourri of observations and comments ranging far and wide over the social activities of mankind and it exerted a great influence on political leaders in the following decades.

Man is born free, and everywhere he is in chains. In The Social Contract, Rousseau explores the concept of freedom and the political structures that may enable people to acquire it. He argues that the sovereign power of a state lies not in any one ruler but in the will of the general population. Rousseau argues that the ideal state would be a direct democracy where executive decision making is carried out by citizens who meet in assembly, as they would in the ancient city-state of Athens.

The leviathan is the vast unity of the State. But how are unity, peace, and security to be attained? Hobbes’ answer is sovereignty, but the resurgence of interest today in Leviathan is due less to its answers than its methods: Hobbes sees politics as a science capable of the same axiomatic approach as geometry.

On the Social Contract's appeal and influence has been wide-ranging and continuous. It has been called an encomium to democracy and, at the same time, a blueprint for totalitarianism. Individualists, collectivists, anarchists, and socialists have all taken courage from Rousseau's controversial masterpiece.

‘It was a sweet finish after the bitter pills of floggings and bullets with which these same governments, just at that time, dosed the German working-class risings’. The Communist Manifesto is, perhaps surprisingly, a most engaging and accessible work, containing even the odd shaft of humour in this translation by Samuel Moore for the 1888 English edition.

From the perspective of an unbeliever, Fear and Trembling explores the paradox of faith, the nature of Christianity, and the complexity of human emotion. Kierkegaard examines the biblical story of Abraham, who was instructed to sacrifice his son Isaac, and forces us to consider Abraham's state of mind. What drove Abraham, and what made him carry out such an absurd and extreme request from God? Kierkegaard argues that Abraham's agreement to sacrifice Isaac, and his suspension of reason, elevated him to the highest level of faith.

In 1831, Alexis de Tocqueville, a young French aristocrat and civil servant, made a nine-month journey through the eastern United States. The result was Democracy in America, a monumental study of the strengths and weaknesses of the nation’s evolving politics. His insightful work has become one of the most influential political texts ever written on America.

In On the Genealogy of Morals, subtitled "A Polemic", Nietzsche furthers his pursuit of a clarity that is less tainted by imposed prejudices. He looks at the way attitudes towards 'morality' evolved and the way congenital ideas of morality were heavily colored by the Judaic and Christian traditions.

The foundation for all modern economic thought and political economy, The Wealth of Nations is the magnum opus of Scottish economist Adam Smith, who introduces the world to the very idea of economics and capitalism in the modern sense of the words.

“The problem of the twentieth century is the problem of the color line,” writes Du Bois, in one of the most prophetic works in all of American literature. First published in 1903, this collection of 15 essays dared to describe the racism that prevailed at that time in America—and to demand an end to it. Du Bois’ writing draws on his early experiences, from teaching in the hills of Tennessee, to the death of his infant son, to his historic break with the conciliatory position of Booker T. Washington.

Though it first aroused anger and controversy rather than admiration and acceptance, A Theologico-Political Treatise was a landmark in the analysis of theology (with particular reference to the Bible and its Jewish and Christian interpretations) and its relationship to philosophy and politics. Spinoza’s scholarly analysis, based on careful study, demonstrated that the Bible was composed by many writers over the centuries - and that even the Pentateuch, the first five books, were not the work of Moses, as was generally assumed at the time.

From his perspective in Renaissance Italy, Machiavelli's aim in this classic work was to resolve conflict with the ruling prince, Lorenzo de Medici. Machiavelli based his insights on the way people really are rather than an ideal of how they should be. This is the world's most famous master plan for seizing and holding power. Astonishing in its candor The Prince even today remains a disturbingly realistic and prophetic work on what it takes to be a prince, a king, or a president.

This classic, definitive account of totalitarianism traces the emergence of modern racism as an "ideological weapon for imperialism", beginning with the rise of anti-Semitism in Europe in the 19th century and continuing through the New Imperialism period from 1884 to World War I.

'The two foes of human happiness are pain and boredom.' Arthur Schopenhauer (1788-1860) was one of the most influential philosophers of the 19th century because his humanistic, atheistic, if pessimistic views chimed with a new secularism that was emerging from a Western society dominated by religion. Despite his rather forbidding image (and a few outdated views), he is one of the most approachable German philosophers, and this is certainly evident in these two key works, The Wisdom of Life and Counsels and Maxims.

The Republic poses questions that endure: What is justice? What form of community fosters the best possible life for human beings? What is the nature and destiny of the soul? What form of education provides the best leaders for a good republic? What are the various forms of poetry and the other arts, and which ones should be fostered and which ones should be discouraged? How does knowing differ from believing?

Alexis de Tocqueville's renowned analysis of American democracy still has relevance today. In 1831 de Tocqueville was sent to America by the French government to study the U.S. penal system, but his real aim was to observe a democratic republic firsthand to see if such an entity could function with dignity and humanity. His travels, which took him to the cities of the Northeast, to the frontier and the Great Lakes, down the Mississippi and through the South, showed him a great deal about the United States. In 1834, he wrote Democracy in America, in which he examines the advantages and pitfalls of democracy, the conditions and conflicts among the races, and the movements that grip the country.

Gaius Musonius Rufus was a Roman Stoic philosopher of the first century AD. He has been referred to as the Roman Socrates and is also remembered for being the teacher of Epictetus. He taught philosophy in Rome during the reign of Nero and so was sent into exile in 65 AD, returning to Rome only under Galba. Twenty-one of his lectures survive together with a few fragmentary notes from others, all of which are contained in this narration.

How is it that the law enforcer itself does not have to keep the law? How is it that the law permits the state to lawfully engage in actions which, if undertaken by individuals, would land them in jail? These are among the most intriguing issues in political and economic philosophy. More specifically, the problem of law that itself violates law is an insurmountable conundrum of all statist philosophies. The problem has never been discussed so profoundly and passionately as in this essay by Frederic Bastiat from 1850. This essay might have been written today. It applies to our own time.

This metaphysical self-help classic instills happiness within and urges individuals to pursue a content life without sin, boredom, or contempt. Written decades ago with post-war depression in mind, this text has transcended time and continues to give applicable advice for modern-day individuals.

The Gay Science (The Joyful Wisdom) is one of Nietzsche's greatest books. His wonderfully fertile mind roams over mankind, his thoughts, his emotions, his behaviour and his weaknesses with remarkable clarity, with insight - but also with humour!In this work are 383 separate paragraphs, some short, some long, but all singular observations - the epitome of his famous aphoristic style. 'Morality is the herd instinct in the individual.'

Utopia is the name given by Sir Thomas More to an imaginary island in this political work written in 1516. Book I of Utopia, a dialogue, presents a perceptive analysis of contemporary social, economic, and moral ills in England. Book II is a narrative describing a country run according to the ideals of the English humanists, where poverty, crime, injustice, and other ills do not exist.

In On the Genealogy of Morals, subtitled "A Polemic", Nietzsche furthers his pursuit of a clarity that is less tainted by imposed prejudices. He looks at the way attitudes towards 'morality' evolved and the way congenital ideas of morality were heavily colored by the Judaic and Christian traditions.

"Anarchy" (1907) is a political classic written by famous anarchist Errico Malatesta. "Anarchy is a word which comes from the Greek, and signifies, strictly speaking, without government: the state of a people without any constituted authority. Before such an organization had begun to be considered possible and desirable by a whole class of thinkers, so as to be taken as the aim of a party (which party has now become one of the most important factors in modern social warfare)."

Durant lucidly describes the philosophical systems of such world-famous “monarchs of the mind” as Plato, Aristotle, Francis Bacon, Spinoza, Kant, Voltaire, and Nietzsche. Along with their ideas, he offers their flesh-and-blood biographies, placing their thoughts within their own time and place and elucidating their influence on our modern intellectual heritage. This book is packed with wisdom and wit.

On Liberty is a book by John Stuart Mill, one of the most celebrated philosophers on the subject of leadership and governing ideals. The book focuses on Mill's philosophy on utilitarianism which is one of his defining principles. The principles of the book are focused on developing a relationship between the ruling authority and liberty.

Xenophon was a Greek who admired and studied with Socrates. He marched with the Spartans and later was exiled from Athens. He wrote about the history of his times, the sayings of Socrates and about life in Greece. Edward Bysshe translated Xenophone's work in 1702. This translation has continued to have an excellent reputation. In this work Xenophon discusses the views of life taught by Socrates.

"The Strenuous Life: Essays and Addresses" is a collection of Theodore Roosevelt's published commentaries and public addresses on what is necessary for a vital and healthy political, social and individual life. Roosevelt states the main point of his speech in the opening remarks: "I wish to preach, not the doctrine of ignoble ease, but the doctrine of the strenuous life, the life of toil and effort, of labor and strife.

Aristotle's Politics is a work of political philosophy. The end of Aristotle’s Nicomachean Ethics declared that the inquiry into ethics necessarily follows into politics, and the two works are frequently considered to be parts of a larger treatise, or perhaps connected lectures, dealing with the philosophy of human affairs. Aristotle is generally regarded as one of the most influential ancient thinkers in a number of philosophical fields, including political theory.