We think everyone should be treated equally. Yet we also think we are right to care most about our family, our friends and our lovers, and 82% of charitable donations in the UK are given to the causes closest to home. Should we just accept that our ethics are in practice tribal? Or is a universal concern for humanity the bedrock of a civilized culture? In which case, do we go down the Effective Altruism movement route?

In this debate, barrister and founder of Effective Giving UK Natalie Cargill, Oxford Political Theorist and author of 'On Nationality' David Miller and human rights activist Peter Tatchell examine the tribal nature of morality.

From the Institute of Art and Ideas collection.