The Aristotelian-Thomist Tradition has long had an enduring place in the history of Western philosophy, so much so, in fact, that it is referred to as the Perennial Tradition. Written specifically for those who are in formation for service in the church, this essential text examines the metaphysics, epistemology, and ethics associated with the Aristotelian-Thomist Tradition and brings its insights into conversation with other philosophical perspectives. The text's summary of philosophy's history and more recent developments in Thomistic thought provide useful context as well. Although written for those who are new to the academic discipline of philosophy, this text does not shy away from some of its thorniest issues. It will thus be of value not just in the classroom, but as a much-needed resource for those who hope to labor in the vineyard of pastoral service.