Mark Vernon talks to a variety of scientists and philosophers about the art of doubting and how the ability to doubt and question well can help us to be more fully human.

"We take things very personally at the moment. People get very disturbed and angry when their certainties about themselves and their world are questioned." So says the philosopher Angie Hobbs. But why? In this programme the writer Mark Vernon, who himself had a crisis of faith, looks at our attitudes towards doubt and certainty.

In conversations with David Jenkins, the former Bishop of Durham, Karen Armstrong, Ann Widdecombe and a variety of scientists and philosophers, he explores the art of doubting and our the ability to question well. He discovers that if we can master this art, it can help us to flourish and become more fully human.

Producers: Amanda Hancox and Rosie Dawson.