Foremost scholar of Thomas Aquinas and late Scholastic philosophy in general, Doyle is honored by North American and European colleagues with 13 essays pivoting on the notion of something that
can be known but does not exist, symbolized by the half-goat/half-stag hircocervus. Among the topics are the eternity of the world according to Peter of Candia, what Aquinas learned from
Maimonides, John Duns Scotus’ approach to metaphysics, and Augustinian abstraction and Henry of Ghent’s metaphysical argument. The postscript is an essay by Doyle himself reprinted from its
1995 publication. Annotation ©2013 Book News, Inc., Portland, OR (booknews.com)