Advice from Evan Davis: How to win an argument on radio 4

I have been looking back on my graduation day and the one piece of advice Evan Davis gave me that sticks out was 'if you want to win an argument on radio 4 you must make the case against your argument more articulately and persuasively than anyone has ever done before - and then go on to say that despite all that you still disagree with that argument for the following reasons...'.