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.

Linguistic structuralism studies the meaning of language based not just on definitions, but also on the relationships of words and sounds to each other. Lévi-Strauss's insight was to see that this concept of structuralism in linguistics could be applied to anthropology as well. He saw that while some cultures are very different from others, they all seem to have certain internal structural relationships in common. By tracing these structures across cultures, he tried to answer nothing less than the eternal question: "What is man?"

Foucault is one of those rare philosophers who has become a cult figure. Born in 1926 in France, over the course of his life he dabbled in drugs, politics, and the Paris SM scene, all whilst striving to understand the deep concepts of identity, knowledge, and power. From aesthetics to the penal system; from madness and civilization to avant-garde literature, Foucault was happy to reject old models of thinking and replace them with versions that are still widely debated today.

Can the Subaltern Speak? is a classic of postcolonial studies, the discipline that examines the impact of colonial control on countries that gained their independence from European powers from the 1940s onwards. The essay, written in 1988 by Calcutta-born scholar Gayatri Chakravorty Spivak, argues that a core problem for the poorest and most marginalized in society (the subalterns) is that they have no platform to express their concerns, and no voice to affect policy debates or demand a fairer share.

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.

Advertisements for soap. The image of a film star. The sight of a car as beautiful as a goddess. We accept all these common objects and experiences as normal parts of our lives and as timeless and universal as myth. But they are also carrying hidden messages that none of us even suspect, as Barthes demonstrates with a unique analysis of the signs that generate meanings and assumptions we all take for granted. These things have been "taken out of history" so that their hidden cultural meanings can be accepted without question.

Clifford Geertz's first collection of essays, The Interpretation of Cultures (1973), made him a leading voice of anthropology's "symbolic" movement, which believed scholars should read the signs and symbols of a culture from the perspective of its natives. Geertz's approach helped anthropology reinvent itself as a scientific discipline that is still relevant today, making him - in the words of one critic - "a true giant of social and cultural theory."

Philosopher Judith Butler's 1990 work, Gender Trouble, shook the foundations of feminist theory and changed the conversation about gender. While many thinkers already accepted that "gender" was a category constructed by society rather than defined by one's genitalia, Butler went further and argued that gender is performative - it exists only in the acts that express it. Society determines that wearing makeup is "feminine" - but some men wear makeup. Are they "women"?

Von außen betrachtet wirkt Ludwig Wittgenstein (1889-1951) wie ein Logiker auf Ab- und Umwegen - wie jemand, der das formale Instrumentarium seiner Zunft nach einiger Zeit aus der Hand gelegt hat, um über den Sinn seiner Instrumente, ja generell über den Sinn seines Tuns nachzudenken. Wittgensteins Werk ist fragmentarisch geblieben, es wirkt unübersichtlich, aber in sich doch wohl durchdacht. Es ist voller Sprünge und Brüche, aber nicht ohne einen fein gewebten Zusammenhang.

Published in 1996, Arjun Appadurai's Modernity at Large is an edited collection of earlier essays that had already made the Indian-born anthropologist an influential figure in his field of cultural anthropology. Appadurai here presents a theory of globalization, and suggests ways that other researchers can follow up on his ideas. Many of them continue to do so. For anthropologists, the book offered new ways of thinking about how communities are affected by globalization.

Western thinking about the Middle and Far East has been distorted by stereotype and inaccuracy. This argument lies at the center of Palestinian-American literary theorist Edward Said's groundbreaking book, Orientalism. Originally published in 1978, it cemented Said's reputation as the father of postcolonial studies.

Sigmund Freud (1856 - 1939) hielt die fünf Vorlesungen im September 1905 anlässlich der 20-jährigen Gründungsfeier der Clark University in Worcester Mass, Massachusetts, USA. Als Begründer der Psychoanalyse wurde Freud weltweit bekannt. Er gilt zudem als einer der einflussreichsten Denker des 20. Jahrhunderts. Bis heute nimmt Freuds Lehre Einfluss auf die Entwicklung der psychotherapeutischen Behandlung und der psychosomatischen Auffassung von Krankheitsbildern. Der Mittelpunkt seiner psychotherapeutischen Arbeit bildete die Behandlung der Patienten anhand der "freien Assoziationstechnik".

Philosophy has been underway for more than 2,000 years. The Great Philosophers traces the biggest and most influential thoughts in philosophy’s long stride through history, beginning with the ancient Greeks and early Romans, the first philosophical thinkers in the West, to whom much is owed. How their concerns became the concerns of those who followed is clearly laid out, as is the way their answers shaped what we now recognize as philosophy.

Max Weber was the first to identify beliefs and practices that influenced economic behavior. He found Catholics generally less motivated to succeed in business than Protestants because of their religious belief that everyone could achieve salvation. The branch of Protestants known as Calvinists, on the other hand, believed God determined everyone's salvation status before birth. Nothing a person might do on earth could save a soul marked for damnation.

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.