Dr Brian Ball is a philosophy lecturer at Balliol College, University of Oxford. He primarily works in the fields of philosophy of language, epistemology, metaphysics, and the philosophy of mind. Prof Denis Noble and Dr Brian Ball discuss these areas of philosophy while asking thought provoking questions such as 'Do we have a mind?' and 'What is knowledge?' The interview was filmed in the quad of Balliol College, and offers some stunning views of the beautiful gardens there.