"...in it we are allowed to watch an elegant and graceful explicator at work, a truly learned and inventive reader who manages--mirabile dictu!--to make Aristotle jump right off the page at you. As a review of basic Scholastic terminology and theory, as a 'handbook' of philosophical backgrounds to the Commedia, and as an example of source scholarship at its very best, this is a book that every Dantist should read." Paul Spillenger, Speculum