[...] Unlike both the orthodox and the postmoderns, I do not think that you can tell much about the worth of a philosopher's views on topics such as truth, objectivity and the possibility of a single vision by discovering his politics, or his irrelevance to politics. So I do not think it counts in favour of Dewey's pragmatic view of truth that he was a fervent social democrat, nor against Heidegger's criticism of Platonic notions of objectivity that he was a Nazi, nor against Derrida's view oflinguistic meaning that his most influential American ally, Paul de Man, wrote a couple of anti-Semitic articles when he was young. The idea that you can evaluate a writer's philosophical views by reference to their political utility seems to me a version of the bad Platonic-Straussian idea that we cannot have justice until philosophers become kings or kings philosophers.