'Questioning,' said Dr Johnson, 'is not a mode of conversation among gentlemen.'
Undeterred Malcolm Muggeridge puts some of the baffling questions submitted by the viewers to this week's guests: Professor Liam Hudson, John Mortimer, QC, Philip Pettit, Claire Tomalin

(Malcolm Muggeridge and his guests will be attempting each week to answer perplexing questions, great and small, arising out of the human condition and submitted by the viewers. If you have questions for the programme, please send them on a postcard without delay to: Stop to Think, [address removed].)