The American thinker Wilfrid Sellars died in 1989, and has been remembered as a primarily analytic philosopher. But today, Sellars is being rediscovered by a new generation of Continental philosophers - and, perhaps surprisingly, Marxists. What do these thinkers find in Sellars, and how are his thoughts on science and knowledge being applied to questions of politics and society?

This week marks 80 years since the liberation of Auschwitz at the end of the Second World War. Representation in literature and cinema of the horrors that took place at Auschwitz is fraught with ethical ambiguities, as is the experience of actually visiting Auschwitz, which many people do today. The place stands as a famous memorial, known to all - and yet, this week's guest fears that the lessons of Auschwitz are being forgotten.

Historians are commonly thought of as being a little like archaeologists or scientists - they're in the business of uncovering facts, and then presenting those facts to the public as accurately as possible. But this week we're considering history as a species of narrative, and the historian as someone who doesn't "discover" the meaning of the past but constructs it.

Libertarians are hard to pin down – they have a number of seemingly contradictory commitments that we normally associate with people on either the left or the right of politics. Libertarians like small government, low taxes and free markets – but they also favour things like same-sex marriage and drug legalisation. So what exactly is libertarianism, and where did it come from?

What exactly is it about swearing that gives it its offensive power? None of the standard philosophy-of-language explanations really gets to the bottom of why we swear, why we don't, and what we're doing when we use "obscene" language. This week, the author of a very sweary philosophy book offers some thoughts.

Around the beginning of the 20th century, philosophy began to take what's come to be known as "the linguistic turn". All major philosophical questions, it was argued, were really questions about language, and this conviction would dominate philosophical discourse for the next century. But are philosophers now starting to turn away from the linguistic turn? And what might be coming next?

The Philosopher's Zone is your guide through the strange thickets of logic, metaphysics and ethics.

When you think about the music you like (or don't like), what does it tell you about your taste? Do you think you have good taste? And if you do, why? What is it about music that determines good or bad taste, and is it possible to cultivate the former?

Mary Graham is one of Australia's most distinguished Aboriginal academics and authors. In this conversation, she articulates a political philosophy of relationality, conflict management and much more.

German-American political theorist Hannah Arendt (1906-1975) was someone who thought and wrote about some of the worst atrocities of the 20th century, so it might seem strange to suggest that her conception of politics was primarily aesthetic. But she herself once said that she only wanted to understand the world, not to change it.