"Zagzebski's book brims with acute observations and is written in such a way that even those not trained in analytic philosophy will find it an enjoyable read. Her focus on the virtues leads her to avoid a style of philosphy that endlessly h=generates counterexamples and engages in barren possible-worlds speculation. Zagzebski brings the resources of premodern philosophy to bear on contemporary issues and opens up a line of inquiry that could prove as fruitful for epistemology as it already has for ethics. Throughout the book, she notes that this is a large project and invites the assistance of others. It is an invitation Thomists would do well to accept." Thomas S. Hibbs, The Thomist