Is philosophy useful? I recently abandoned a course of philosophical study because I became overwhelmed by a sense that all I was doing - all I could ever do - was produce more philosophy. It was fun, it was interesting, I improved my research skills and now have a wider circle of strongly opinionated friends. But I couldn't escape the sense that real ideas were being abandoned in favour of increasingly intricate, but ultimately unhelpful semantic constructs and their counterexamples - for some reason, I am reminded of a paradox involving some ravens.