Groundwork of the Metaphysics of Morals is the first of Immanuel Kant's mature works on moral philosophy and remains one of the most influential in the field. Kant conceives his investigation as a work of foundational ethics - one that clears the ground for future research by explaining the core concepts and principles of moral theory, and showing that they are normative for rational agents.

John Stuart Mill (1808-1873) was a torchbearer for liberal thought in the 19th century, including liberty of the individual and freedom of speech, and he championed women's suffrage in Parliament. A remarkable man - he learned Greek aged three and at eight had read Herodotus, Xenophon and Plato - he campaigned all his life for a just society. These two essays are his key works.

First published in 1859, John Stuart Mill's On Liberty is an exhaustive exploration of social and civic liberty, its limits, and its consequences. Mill's work is a classic of political liberalism that contains a rational justification of the freedom of the individual in opposition to the claims of the state.

Groundwork of the Metaphysics of Morals (1785) is the first of Immanuel Kant's mature works on moral philosophy and remains one of the most important in the field. Kant examines the core concepts and principles of moral theory, showing that they are normative for rational agents. He aspires to lay bare the fundamental principle of morality and prove that it applies to us. Kant offers the argument that the rightness of an action is determined by the character of the principle that a person chooses to act upon.

A celebration of individuality, diversity, and nonconformity, On Liberty still makes a persuasive argument for what John Stuart Mill believed to be humankind’s essential liberties: the freedoms of speech, assembly, and the pursuit of pleasure, so long as one’s actions do not impede the liberty of another. These freedoms, he maintained, result in a far more successful society than one ruled by the tyranny of the majority. This treatise on personal liberty has inspired debate since its publication in 1859, and has provided the foundation for modern liberal political thought.

Underlain by an acute sense of ethics, this provided the basis for his strongly declared, wide-ranging views on many subjects: prohibition of cock-fighting, liberty of the press, universal suffrage, the removal of religious tests for office and even hunting. All were radical ideas for his time. He also proposed the decriminalisation of homosexuality, though even he did not dare to publish his essay on this subject during his lifetime. But An Introduction to the Principles of Morals and Legislation was his major work.

Immanuel Kant’s Critique of Pure Reason can lay claim to being the most important single work of modern philosophy, a work whose methodology, if not necessarily always its conclusions, has had a profound influence on almost all subsequent philosophical discourse. In this work Kant addresses, in a groundbreaking elucidation of the nature of reason, the age-old question of philosophy: “How do we know what we know?” and the limits of what it is that we can know with certainty.

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.

What are our obligations to others as people in a free society? Should government tax the rich to help the poor? Is the free market fair? Is it sometimes wrong to tell the truth? Do individual rights and the common good conflict? These questions are at the core of our public life today - and at the heart of Justice, in which Michael J. Sandel shows how a surer grasp of philosophy can help us to make sense of politics, morality, and our own convictions as well.

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.

Hailed as the most compelling biography of the German dictator yet written, Ian Kershaw's Hitler brings us closer than ever before to the heart of its subject's immense darkness. From his illegitimate birth in a small Austrian village to his fiery death in a bunker under the Reich chancellery in Berlin, Adolf Hitler left a murky trail, strewn with contradictory tales and overgrown with self-created myths. One truth prevails: the sheer scale of the evils that he unleashed on the world has made him a demonic figure without equal in the 20th century.

One of the most influential works of this century, The Myth of Sisyphus and Other Essays is a crucial exposition of existentialist thought. Influenced by works such as Don Juan and the novels of Kafka, these essays begin with a meditation on suicide; the question of living or not living in a universe devoid of order or meaning.

This book consists of two parts: the essay "The Idea of Public Reason Revisited" and "The Law of Peoples", a major reworking of a much shorter article by the same name. Taken together, they are the culmination of more than 50 years of reflection on liberalism and on some of the most pressing problems of our times.

The world-renowned philosopher and author of the best-selling Justice explores the central question of our time: What has become of the common good? World-renowned philosopher Michael J. Sandel argues that to overcome the crises that are upending our world, we must rethink the attitudes toward success and failure that have accompanied globalization and rising inequality. Sandel shows the hubris a meritocracy generates among the winners and the harsh judgment it imposes on those left behind, and traces the dire consequences across a wide swath of American life.

Immanuel Kant's Fundamental Principles of the Metaphysics of Morals, first published in 1785, lays out Kant's essential philosophy and defines the concepts and arguments that would shape his later work. Central to Kant's doctrine is the categorical imperative, which he defines as a mandate that human actions should always conform to a universal, unchanging standard of rational morality.

Immanuel Kant's Fundamental Principles of the Metaphysics of Morals, first published in 1785, lays out Kant's essential philosophy and defines the concepts and arguments that would shape his later work. Central to Kant's doctrine is the categorical imperative, which he defines as a mandate that human actions should always conform to a universal, unchanging standard of rational morality.

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.

Kant published this work in 1795, during the aftermath of the American Revolution and the French Revolution. The high hopes of the European Enlightenment had been dampened by the Reign of Terror in which tens of thousands of people died, and the perpetual cycle of war and temporary armistice seemed to be inescapable. Kant's essay is best known as an early articulation of the idea of a league of nations that could bring an end to all hostilities. Today, the United Nations continues to pursue that dream, but lasting peace still seems to be wishful thinking.

A Short History of Ethics is a significant contribution written by one of the most important living philosophers. It remains an important work, ideal for all students interested in ethics and morality.

'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.

Sigmund Freud (1856-1939) is remembered as the father of psychoanalysis. Civilization and Its Discontents (1930) is one of his key works, written three decades after his seminal book The Interpretation of Dreams. In it he considers the conflict between the needs of the individual acting both egotistically and altruistically in the pursuit of happiness and the myriad demands of civilised society and the ensuing tensions this clash of needs and demands generates.

First published in 1859, John Stuart Mill's On Liberty is an exhaustive exploration of social and civic liberty, its limits, and its consequences. Mill's work is a classic of political liberalism that contains a rational justification of the freedom of the individual in opposition to the claims of the state.

Who needs philosophy? Ayn Rand's answer: Everyone. This collection of essays was the last work planned by Ayn Rand before her death in 1982. In it, she summarizes her view of philosophy and deals with a broad spectrum of topics. According to Ayn Rand, the choice we make is not whether to have a philosophy, but which one to have: a rational, conscious, and therefore practical one, or a contradictory, unidentified, and ultimately lethal one.

The purpose of this book is twofold: first, to elucidate the logic, principles, and significance of the Declaration of Independence as the embodiment of the American mind; and, second, to shed light on what John Adams once called the "real American Revolution"; that is, the moral revolution that occurred in the minds of the people in the 15 years before 1776.

What are the arguments for and against religion and religious belief - all of them - right across the range of reasons and motives that people have for being religious, and do they stand up to scrutiny? Can there be a clear, full statement of these arguments that once and for all will show what is at stake in this debate? Equally important: what is the alternative to religion as a view of the world and a foundation for morality?

Like F.A. Hayek, Ludwig von Mises moved beyond economics in his later years to address questions regarding the foundation of all social science. But unlike Hayek's attempts, Mises' writings on these matters have received less attention than they deserve. Theory and History, writes Rothbard in his introduction, "remains by far the most neglected masterwork of Mises". Here Mises defends his all-important idea of methodological dualism: one approach to the hard sciences and another for the social sciences.

Hannah Arendt's insightful observations of the modern world, based on a profound knowledge of the past, constitute an impassioned contribution to political philosophy. In Between Past and Future, Arendt describes the perplexing crises modern society faces as a result of the loss of meaning of the traditional key words of politics: justice, reason, responsibility, virtue, and glory. Through a series of eight exercises, she shows how we can redistill the vital essence of these concepts and use them to regain a frame of reference for the future.

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?

lf a man cannot stand freedom, he will probably turn fascist. This, in the fewest possible words, is the essential argument in this modem classic, Escape from Freedom. The author, Erich Fromm, is a distinguished psychologist, late of Berlin and Heidelberg, now of New York City.

"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)."

First published in 1859, John Stuart Mill's On Liberty is an exhaustive exploration of social and civic liberty, its limits, and its consequences. Mill's work is a classic of political liberalism that contains a rational justification of the freedom of the individual in opposition to the claims of the state.

Aristotle's Nicomachean Ethics, said to be dedicated to Aristotle's son, Nicomachus, is widely regarded as one of the most important works in the history of Western philosophy. Addressing the question of how men should best live, Aristotle's treatise is not a mere philosophical meditation on the subject, but a practical examination that aims to provide a guide for living out its recommendations.

John Stuart Mill (1808-1873) was a torchbearer for liberal thought in the 19th century, including liberty of the individual and freedom of speech, and he championed women's suffrage in Parliament. A remarkable man - he learned Greek aged three and at eight had read Herodotus, Xenophon and Plato - he campaigned all his life for a just society. These two essays are his key works.

John Stuart Mill (1806-73) is widely regarded as the leading liberal philosopher, economist, and political theorist of nineteenth century Britain. In his lifetime, he was best known for his System of Logic (1843) and the Principles of Political Economy (1848). Today Mill is chiefly identified with On Liberty (1859), perhaps the definitive text of modern liberal statement of its subject, and probably the single most important work of modern political thought.

Published in 1748, An Enquiry Concerning Human Understanding is Scottish empiricist philosopher David Hume's distillation of his mature philosophy. Addressing themes including the limits of human understanding, the compatibility of free will with determinism, weaknesses in the foundations of religion, and the appeal of skepticism, An Enquiry Concerning Human Understanding is Hume's attempt to revise and clarify the ideas of his earlier A Treatise of Human Nature.

Often considered the foundation of political liberalism, John Locke's Two Treatises of Government was first published anonymously in 1689, in the wake of England's Glorious Revolution. In The First Treatise of Government, Locke refutes the idea of divine monarchy, while The Second Treatise of Government articulates Locke's philosophy of government, which he based upon his theories of natural rights and the social contract.

The complete texts of the documents that tell the story of the clashes and compromises that gave birth to the Unites States of America. Should the members of the government be elected by direct vote of the people? Should the government be headed by a single executive, and how powerful should that executive be? Should immigrants be allowed into the United States? How should judges be appointed? What human rights should be safe from government infringement? In 1787, these important questions and others were raised as the states debated the merits of the proposed Constitution.

Thomas Paine published Common Sense in 1776, a time when America was a hotbed of revolution. The pamphlet, which called for America's political freedom, sold more than 150,000 copies in three months. Paine not only spurred his fellow Americans to action but soon came to symbolize the spirit of the Revolution itself. His persuasive pieces, written so elegantly, spoke to the hearts and minds of all those fighting for freedom from England.

Kant is arguably the most influential modern philosopher, but also one of the most difficult. Roger Scruton tackles his exceptionally complex subject with a strong hand, exploring the background to Kant's work and showing why the Critique of Pure Reason has proved so enduring.

Benedict de Spinoza's Ethics, first published in 1677, constitutes a major systematic critique of the traditional and religious foundations of philosophical thought. In it, Spinoza follows a logical step-by-step format consisting of definitions, axioms, propositions, proofs, and corollaries to create a comprehensive inquiry into the truth about God, nature, and humans' place within the universe. From these broad metaphysical themes, Spinoza derives what he considered to be the highest principles of religion and society and lays out an ethical system in which reason is the supreme value.