Abstract

This work, the Nature and Value of Scepticism, shows that the metaphilosopby arising from what David Hume calls "true scepticism," is of use and value, refuting three standard objections to sceptical philosophy: the charges of unlivability, of idleness and of being dangerous and destructive. ;The unlivability charge is refuted with an examination of the work of a self-proclaimed extreme sceptic, Sextus Empiricus. The idleness charge is answered by questioning its assumption that if scepticism does not lead to an extreme conclusion, it must be idle and without philosophical interest. The destructive charge, that the acceptance of scepticism would result in the death of rationality, is countered in reviewing the work of Hume and Ludwig Wittgenstein, showing that their outlook is not against philosophy but only a particular type of philosophy, namely dogmatic philosophy. ;Chapter 1 argues that two reasonable interpretations of Sextus's writings yield a scepticism that is livable and philosophically important. Chapter 2 shows Hume's philosophy is livable and not destructive. Chapter 3 examines the connection between Hume's philosophy and his sceptical approach, arguing that his true scepticism informs his philosophical outlook. Chapter 4 argues that Wittgenstein shares much with Hume's "true scepticism," and that his work is not anti-philosophical as widely supposed. Chapter 5 provides examples of how a sceptically informed metaphilosophy can help address questions in epistemology and metaethics