From Chesterton’s “Dumb Ox”

Yes; in spite of the contrasts that are as conspicuous and even comic as the comparison between the fat man and the thin man, the tall man and the short: in spite of the contrast between the vagabond and the student, between the apprentice and the aristocrat, between the book-hater and the book-lover, between the wildest of all missionaries and the mildest of all professors, the great fact of medieval history is that these two great men were doing the same great work; one in the study and the other in the street. They were not bringing something new into Christianity; in the sense of something heathen or heretical into Christianity; on the contrary, they were bringing Christianity into Christendom. But they were bringing it back against the pressure of certain historic tendencies, which had hardened into habits in many great schools and authorities in the Christian Church; and they were using tools and weapons which seemed to many people to be associated with heresy or heathenry. St. Francis used Nature much as St. Thomas used Aristotle; and to some they seemed to be using a Pagan goddess and a Pagan sage. What they were really doing, and especially what St. Thomas was really doing, will form the main matter of these pages; but it is convenient to be able to compare him from the first with a more popular saint; because we may thus sum up the substance of it in the most popular way. Perhaps it would sound too paradoxical to say that these two saints saved us from Spirituality; a dreadful doom. Perhaps it may be misunderstood if I say that St. Francis, for all his love of animals, saved us from being Buddhists; and that St. Thomas, for all his love of Greek philosophy, saved us from being Platonists. But it is best to say the truth in its simplest form; that they both reaffirmed the Incarnation, by bringing God back to earth.