Ordinatio

The Ordinatio, also known as the Opus Oxoniense, is a monumental commentary on Peter Lombard's Sentences by the influential Franciscan theologian and philosopher John Duns Scotus. Duns Scotus, known as the "Doctor Subtilis," developed his philosophical and theological ideas primarily in this work, which he began at Oxford and continued in Paris.1234

Key aspects of Duns Scotus's thought, as presented in the Ordinatio, include his emphasis on the contingency of the universe and its dependence on God's will, elevating the will above the intellect. He also proposed a unique doctrine of universals, positing that common natures exist in individuals and are distinguished by an "individual difference" or "thisness" (haecceitas). Duns Scotus is also renowned for his defense of the Immaculate Conception of Mary.31