Geneva-born thinker Jean-Jacques Rousseau's famous work of political philosophy from 1762 is based on a give-and-take theory of the relation between individual freedom and social order: the social contract that gives the work its name. Rousseau thinks about the issue by starting with what is known as the state of nature, a lawless condition where people are free to do what they like, governed only by their own instinctive sense of justice. People are free, but they are also vulnerable to chaos.

First available in 1689, John Locke's Two Treatises of Government is considered one of the most important works ever written on the foundations of government. Published anonymously, it argues against the popular idea at the time that monarchs have a God-given right to rule. Instead Locke proposes that sovereignty - supreme authority - ultimately resides with the people.

On the Genealogy of Morality was written in 1887 when Friedrich Nietzsche was at the height of his powers as a philosopher and master of German prose writing. Here, he criticizes the idea that there is just one conception of moral goodness, dissecting the contemporary practice of morality and looking at it from a historical viewpoint. Rather than following a metaphysical or religious approach, Nietzsche adopts a naturalistic framework, which is grounded in history and natural science, to understand our concepts of good and evil in the Christianized Western world.

Christianity is the most enduring and influential legacy of the ancient world, and its emergence the single most transformative development in Western history. Even the increasing number in the West today who have abandoned the faith of their forebears, and dismiss all religion as pointless superstition, remain recognisably its heirs. Seen close up, the division between a sceptic and a believer may seem unbridgeable. Widen the focus, though, and Christianity's enduring impact upon the West can be seen in the emergence of much that has traditionally been cast as its nemesis.

Austrian-born economist Friedrich Hayek's 1944 work, The Road to Serfdom, analyzes the ways in which excessive government planning can erode democracy. Published while World War II still raged, the work draws influential parallels between the totalitarianism of both socialism and Nazism and increasing control exerted by Western democracies.

More than two centuries after its initial publication in 1781, Immanuel Kant's Critique of Pure Reason remains perhaps the most influential text in modern philosophy. Kant himself claimed his work as a revolutionary document and insisted that it changed the discipline of philosophy as thoroughly as Copernicus had changed astronomy 300 years earlier, when he said the Earth revolved around the sun and not the other way round.

Philosophy for busy people. Listen to a succinct account of the philosophy of Hegel in just one hour. With Hegel philosophy became very difficult indeed – even the great man himself conceded that ‘only one man understands me, and even he does not.’ His dialectical method produced the most grandiose metaphysical system known to humanity, and included absolutely everything, its most vital element being the dialectic of the thesis, antithesis and synthesis.

Philosophy for busy people. Listen to a succinct account of the philosophy of Foucault in just one hour. The French philosopher Michel Foucault set about his task rather like a historian. After painstaking research, he concluded that knowledge and power were intimately related throughout history.

Philosophy for busy people. Listen to this succinct account of the philosophy of Rousseau in just one hour. In Rousseau we encounter a walking ego, a naked sensibility - his arguments are both deeply stirring and deeply inconsistent. Yet whilst his contemporaries Kant and Hume may have been superior academic philosophers, the sheer power of Rousseau’s ideas was unequalled in his time. It was he who encouraged the introduction of both liberty and irrationality into the public domain, lamenting how ‘man is born free but everywhere he is in chains’. This audiobook is an expert account of Rousseau’s life and philosophical ideas - entertainingly written and above all easy to listen to. Also included are selections from Rousseau’s work, suggested further reading, and chronologies that place Rousseau in the context of the broader scheme of philosophy.

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.

In his devastating new book The Madness of Crowds, Douglas Murray examines the 21st century’s most divisive issues: sexuality, gender, technology and race. He reveals the astonishing new culture wars playing out in our workplaces, universities, schools and homes in the names of social justice, identity politics and ‘intersectionality’. We are living through a postmodern era in which the grand narratives of religion and political ideology have collapsed.

In How to Be Right, James provides a hilarious and invigorating guide to talking to people with faulty opinions. With chapters on every lightning-rod issue, James shows how people have been fooled into thinking the way they do and in each case outlines the key questions to ask to reveal fallacies, inconsistencies and double standards. If you ever get cornered by ardent Brexiteers, Daily Mail disciples or little England patriots, this book is your conversation survival guide.

Philosophy for busy people. Listen to this succinct account of the philosophy of Derrida in just one hour. Jacques Derrida’s ‘deconstructionism’ is nothing less than an effort to destroy all ‘writing’ by demonstrating its inevitable falsehood. The writer writes but does not know what he is writing. Derrida argues that all texts have their own hidden agenda and contain their own metaphysical assumptions – the writer’s very language inevitably distorts what he thinks and writes.

First published in 1936, Keynes’ ideas had evolved during the difficulties following World War 1 in Europe, and the US crash and the Depression of the 1920s-'30s and the misery of mass unemployment. He deplored the situation where a few individuals or companies stored massive wealth while vast numbers experienced poverty and insecurity (his alarm bells ring today!) and sought to promote initiatives where governments could intervene with social projects to keep money fluctuating.  

The 13 chapters of The Art of War, each devoted to one aspect of warfare, were compiled by the high-ranking Chinese military general, strategist, and philosopher Sun-Tzu. In spite of its battlefield specificity, The Art of War has found new life in the modern age with leaders in fields as wide and far-reaching as world politics, human psychology, and corporate strategy finding valuable insight in its timeworn words.