Does it go beyond true belief? "For those philosophers who work in epistemology (the ‘theory of knowledge’), the holy grail is to pin down the nature of knowledge and explain why it matters. But despite thousands upon thousands of articles devoted to the topic, the philosophers haven’t been able to come up with a good story. I say that’s because they’re barking up the wrong tree. The notion of knowledge doesn’t, in fact, pick out anything important." What does it mean to truly know something? Far from being empirical, David Papineau argues, knowledge could be nothing more than over asserted beliefs.