"Morality and Mathematics is a terrific book on the epistemological issues faced by realist views in mathematics and morality. Clarke-Doane provides a far more nuanced discussion of these issues than I've seen elsewhere, with sensitivity to what is common in the two domains, and what is different, and to the extent to which the apparent differences hide an underlying similarity. It is sure to become the standard work on this subject." --Hartry Field (NYU)

"Justin Clarke-Doane identifies and explores the shocking parallelism between morality and mathematics: on a surprising number of philosophical fronts, the two disparate subjects seem to face common problems and analogous solutions and rebuttals, whether the issue is realism, a priori justification, objectivity, naturalism or pluralism. With consummate philosophical skill, Clarke-Doane teases apart the differences and uncovers what is truly common and what is not. A remarkable philosophical work." --Joel David Hamkins (Notre Dame)

Philosophia Mathematica: "This excellent book...compares morality and mathematics. Their similarities and differences are not what one might naively supposee, as the author demonstrates.  The book is highly recommended to philosophers interested in both subjects, and to anyone who seeks a global understanding of how morality and mathematics fit into our belief system....The idea that practical questions alone resist deflation in the face of pluralist...realism ...facilitated by the tension between realism and objectivity... mak[es]...for a rather striking metaphilosophical vision." --Michael Bevan & Alexander Paseau (Oxford University)