First published in 1999, this epistemological volume takes Searle's 'simple theory' and 'common sense' realism and builds it from the ground up, applying it to some of the most contentious issues in the philosophy of science. Garry Potter shall also attempt to extent his notions of science and realism beyond the subject boundaries to demonstrate the applicability of both scientificity and realism where such a possibility is perhaps most counter-intuitive: literary criticism. Potter thus presents a unified theory of knowledge.