This is one of the richest, most sophisticated, and most impressive books on metaethics to have been published in my lifetime. Everyone with any interest in normative language ought to read it. Those who would seek to defend reductive naturalist views of the sort Finlay develops here will find it a treasure trove of dialectical resources that they will want to plunder repeatedly. Those who seek to attack such views or to defend rival views will find it a challenge it would be shameful to ignore. (James Lenman, LANGUAGE)

Stephen Finlay has made an indispensable contribution to our understanding of normative, evaluative, and moral language...his broadly relativist approach offers an intellectually appealing alternative (The Philosophers' Magazine)

This is a book that anyone with an interest in metaethics ought to read, and I recommend it very highly. (Analysis)

Stephen Finlay's Confusion of Tongues (COT) is an ambitious book. Its first half advances a unifying semantics for normative words, including 'good', 'ought', and 'reason'. In the second half, he argues that this semantics, combined with a single pragmatic principle, can explain the uses of such expressions of special interest to ethicists. COT's engagement with these topics is rich and complex. (Mind)