When you're exhausted ... what is the thought that gives you maximum relief? I get my pleasure from thinking about the problems of physics. It is the biggest relaxation.
In 1979 Professor Abdus Salam of Imperial College, London, shared the Nobel prize for his work towards unifying the forces of nature. He discusses with Lewis Wolpert of the Middlesex Hospital Medical
School, London, the nature of the subject which he finds not only pleasurable but also sublime.
Producer ALISON RICHARDS