Critchley, Simon. "BEING AND TIME, Part 1: Why Heidegger Matters." GUARDIAN June 8, 2009.

Martin Heidegger (1889-1976) was the most important and influential philosopher in the continental tradition in the 20th century. Being and Time, first published in 1927, was his magnum opus. There is no way of understanding what took place in continental philosophy after Heidegger without coming to terms with Being and Time. Furthermore, unlike many Anglo-American philosophers, Heidegger has exerted a huge influence outside philosophy, in areas as diverse as architecture, contemporary art, social and political theory, psychotherapy, psychiatry and theology. However, because of his political commitment to National Socialism in 1933, when he assumed the position of Rector of Freiburg University in south-western Germany, Heidegger continues to arouse controversy, polemic and much heated misunderstanding. The hugely important matter of the relation between Heidegger and politics is the topic for another series of blogs entries. Indeed, to my mind, the nature and extent of Heidegger's involvement in National Socialism only becomes philosophically pertinent once one has begun to understand and feel the persuasive power of what takes place in his written work, especially Being and Time. The task I have set myself in this series of blogs is to provide a taste of the latter book and hopefully some motivation to read it further and study it more deeply. But once you have read Being and Time and hopefully been compelled by it, then the question that hangs over the text, like the sword of Damocles, is the following: how could arguably the greatest philosopher of the 20th century also have been a Nazi? What does his political commitment to National Socialism, however long or short it lasted, suggest about the nature of philosophy and its risks and dangers when stepping into the political realm? . . . Read the rest here: http://www.guardian.co.uk/commentisfree/belief/2009/jun/05/heidegger-philosophy.