This book is a defence of the philosophy of common sense broadly in the spirit of Thomas Reid and G.E. Moore. It breaks new ground by drawing on the work of Aristotle, contemporary evolutionary biology and psychology, and historical studies on the origins of early modern philosophy. Part One offers new answers to the questions: What counts as a common sense belief? Why should common sense beliefs be considered default positions? And why is it that philosophers so frequently end up denying what we all know to be true? Part Two defends common sense beliefs from specific challenges from prominent philosophers on topics from metaphysics to ethics.

One of the most remarkable features of mid-to-late twentieth century analytic philosophy is the revival of interest in the traditional problems of metaphysics. However, given the long period of neglect from which metaphysics in only now emerging, it is perhaps not surprising that philosophers in the analytic tradition are still finding their metaphysical feet, particularly on meta-metaphysical and methodological matters. Thus contemporary metaphysicians find themselves in an exciting but ultimately unstable position: We are convinced that metaphysical questions are worth pursing, but we still lack a convincing story to offer our detractors about how we conduct our business "qua" metaphysicians. This essay is an attempt to provide such a story. The core recommendation is that we need not re-invent the discipline out of whole cloth if we are willing to learn from the past masters, particularly the Scholastics. What ultimately emerges is a defense of Scholastic metaphysical principles based on contemporary evolutionary biology.

Many philosophers in the analytic tradition are now convinced that metaphysical questions are worth pursuing, but we still lack a convincing meta-metaphysics and methodology. This essay offers an account of how we should conduct our business qua metaphysicians.

This book is a defence of the philosophy of common sense in the spirit of Thomas Reid and G.E. Moore, drawing on the work of Aristotle, evolutionary biology and psychology, and historical studies on the origins of early modern philosophy. It defines and explores common sense beliefs, and defends them from challenges from prominent philosophers.