The philosopher Peter Singer is famous for his attack on speciesism, the alleged prejudice that many exhibit in favour of human interests when compared with the interests of other animals. Here Shelly Kagan outlines Singer's position and takes issue with it. In the process he makes some interesting points about prejudices in general.

Michel Foucault's work explores a wide range of topics; it includes histories of both punishment and sex. He also wrote more abstractly about philosophical topics. One theme to which he kept returning, whatever the topic, was the nature of our knowledge. Susan James discusses this thread in his work in this episode of the Philosophy Bites podcast.

How do you choose which course of action is best? It seems reasonable that if A is better than B, and B is better than C, A must be better than C. But is it? Larry Temkin challenges this idea, known as the axiom of transitivity.

How should we live? is a basic philosophical question. The Stoics had some answers. But are they relevant today? William B. Irvine thinks so. Listen to his conversation with Nigel Warburton on this episode of the Philosophy Bites podcast.

What is power? Steven Lukes argues for a three-dimensional account of this concept in this episode of the Philosophy Bites podcast.

The historian and writer Theodore Zeldin gives his personal take on the relation betwen philosophy and history in this episode of the Philosophy Bites podcast. 

What part do emotions play in our appreciation of art? Jesse Prinz explores the sense of wonder at artworks in this episode of the Philosophy Bites podcast.

What is a conspiracy? Why do conspiracies - real or imagined -  matter to philsophy? Cassim Quaassam explores these questions in conversation with Nigel Warburton

Are all truths relative? That's an attractive idea for many people. Tim Williamson, Wykeham Professor of Logic at Oxford University discusses why and attempts to immunise us against sloppy thinking in this area.

How does your view of the self affect your attitude to your own death? Shaun Nichols discusses this question in this episode of the Philosophy Bites podcast.