The Open University and New York University (London)Peter Cave read philosophy at University College London and King's College Cambridge. His philosophy lectureships span University College London, University of Khartoum, Sudan to, currently, The Open University and New York University (London).Peter is a Fellow of the Royal Society of Arts, sits on the Council of the Royal Institute of Philosophy and is Patron of Humanists UK and of Population Matters. He has published many papers, light and serious. His books include This Sentence is False: an introduction to philosophical paradoxes and three 'beginner's guides': Humanism; Philosophy; and Ethics. His most recent work is The Big Think Book: Discover Philosophy Through 99 Perplexities. He has written and presented philosophy programmes for BBC radio, and often takes part in public debates.