'Wallis's book has all the virtues which one could require in a popular account of a difficult, ancient, or unfamiliar kind of philosophy. It is as clear as the subject matter admits, genuinely comprehensive, well documented ... and very well balanced.' A.H. Armstrong, Classical Review
'Wallis's book has all the virtues which one could require in a popular account of a difficult, ancient, or unfamiliar kind of philosophy. It is as...