"The detailed and nuanced account of the disputes about human diversity, race, and gender at the heart of the stadial theories of the Scottish Enlightenment makes a substantive contribution to the fields of Enlightenment studies, critical race theory, gender studies, and the history of ideas. Scholars in these disciplines as well as interdisciplinary scholars who share an interest in these themes will find in this work a wealth of resources." (Edinburgh University Press, euppublishing.com, Vol. 14 (2), June, 2016)