It is an honour to be invited to give this year’s Mackenzie Stuart Lecture. Jack Mackenzie Stuart was a distinguished graduate of this University and of ours in Edinburgh. As a member, and subsequently the President, of the Court of Justice of the European Communities he made a great contribution to the cause of European integration through implementing the laws of the Communities, subsequently the ‘European Union’. As well as performing the ordinary tasks of judging and also latterly of presiding over the Court’s business, he was an apparently tireless publicist for that cause throughout Europe, but most particularly at home in the UK. By seeking to make the work of his Court and the law it administered less mystifying to the ordinary citizen and to the lawyerly public, he made it also less threatening.