Thomas Osborne's Thomas Aquinas on Virtue offers readers a judicious and comprehensive account of Aquinas's teaching on infused and acquired virtues. Osborne puts that teaching in its original context by showing how Aquinas transforms the Augustinian understanding of virtue found in Lombard's Sentences by means of the recently rediscovered Aristotelian teaching on virtue. In drawing on the full range of Aquinas's discussion of virtue, neglecting neither the Scripture commentaries nor Aristotle commentaries, Osborne brings into a harmonious whole the obiter dicta remarks of Aquinas found in so many different works. It will be of great use to professors and graduate students seeking to understand the whole of this doctrine which is expressed in so many different works in Aquinas's opera omnia.