The primary purpose of this book is to explain the key concepts in Hobbes's thought and those subsidiary concepts that are important but not well known. Occasionally, I shall raise objections to Hobbes's views and sometimes suggest how he might have responded. The reason for doing so is to help the reader to understand what I take Hobbes to mean by considering the implications of his thought. Where there are apparent contradictions in Hobbes's thought, I have noted them and sometimes (...) suggest reasons for them or ways of eliminating them without trying to force an interpretation on the text. Interpretations of Hobbes's thought vary widely. I have tried to steer a course between being partisan and being uncritical. The secondary purpose of this book is to refer the reader to the chief discussions of those concepts in Hobbes's own work. (shrink)