In Chapter 3, I sketched out very briefly the way in which I think realism should deal with the interrelated issues of interpretation, common sense, consensus (in the sense of progress in science) etc. In Chapters 4 and 5, I worked through these claims in more detail, presenting the main themes of hermeneutics and critical theory and trying to show that they can, after all, be incorporated within the realist naturalist position advanced in Chapter 1.