The last four volumes of our "Thomistic philosophy course" are a select anthology of philosophical texts, excellent way to enter the direct knowledge of the great classics of human thought. It is the purpose of the authors help students to have contact with the texts of the great thinkers studied in the history of philosophy. To this end, we offer within the proper limits of an introductory work, the largest possible extent and variety of texts and fragments of the most representative authors of every age, precisely those who figure prominently in the exhibition of the volumes for the history of philosophy. In this volume are the following authors: St. Augustine, St. Anselm, St. Bonaventure, St. Thomas Aquinas, Raymond Lull, Duns Scotus, William of Ockham, and Francisco Suarez. The texts are quite large in order to allow the analysis detainees. The four-volume anthology are the necessary counterpoint to the systematic and historical premises established in the previous volumes.