Scholastic philosophy is considered to begin with John Scotus Erigena who flourished about the year 860, and who must not be confused with the Duns Scotus of a later date. We do not quite know whether he belonged to Ireland or to Scotland, for Scotus points to Scotland, and Erigena to Ireland. With him true philosophy first begins, and his philosophy in the main coincides with the idealism of the Neo-Platonists. […]
Scotus was also the author of some original works, which are not without depth and penetration, upon nature and its various orders (De naturæ divisione), &c. Dr. Hjort, of Copenhagen, published an epitome of the writings of Scotus Erigena, in 1823. Scotus Erigena sets to work philosophically, expressing himself in the manner of the Neo-Platonists, and not freely, and as from himself, Thus in the method of expression adopted by Plato, and also by Aristotle, we are rejoiced to find a new conception, and on bringing it to the test of philosophy, to find it both correct and profound; but here everything is ready to hand, cut and dry. Yet, with Scotus, theology is not yet built on exegesis, and on the authority of the Church; the Church in many cases rejected his writings. Thus Scotus is reproached by a Lyons church council […] Scotus Erigena hence even said: “The true Philosophy is the true Religion, and the true Religion is the true Philosophy. The separation came later on. Scotus then made a beginning, but properly he does not belong to the scholastics
From Hegel’s Lectures on the History of Philosophy: Part Two. Philosophy of the Middle Ages. This second section covers The Scholastic Philosophy.
The entire lecture, including an unabridged version of the quote above is available here.