The doctor and philosopher Abu Bakr al-Razi sets out a daring philosophical theory involving five eternal principles: God, soul, matter, time and place.

HoP 127 - Peter E Pormann on Medicine in the Islamic World

Peter Adamson, Professor of Philosophy at the LMU in Munich and at King's College London, takes listeners through the history of philosophy, "without any gaps". www.historyofphilosophy.net