Gene Wolfe is an author whose books I have never read, although I know of him through other authors I enjoy. Here is his tribute to J. R. R. Tolkein.
There is one very real sense in which the Dark Ages were the brightest of times, and it is this: that they were times of defined and definite duties and freedoms. The king might rule badly, but everyone agreed as to what good rule was. Not only every earl and baron but every carl and churl knew what an ideal king would say and do. The peasant might behave badly; but the peasant did not expect praise for it, even his own praise. These assertions can be quibbled over endlessly, of course; there are always exceptional persons and exceptional circumstances. Nevertheless they represent a broad truth about Christianized barbarian society as a whole, and arguments that focus on exceptions provide a picture that is fundamentally false, even when the instances on which they are based are real and honestly presented. At a time when few others knew this, and very few others understood its implications, J. R. R. Tolkien both knew and understood, and was able to express that understanding in art, and in time in great art.
Earlier I asked what Tolkien did and how he came to do it; we have reached the point at which the first question can be answered. He uncovered a forgotten wisdom among the barbarian tribes who had proved (against all expectation) strong enough to overpower the glorious civilizations of Greece and Rome; and he had not only uncovered but understood it. He understood that their strength -- the irresistible strength that had smashed the legions -- had been the product of that wisdom, which has now been ebbing away bit by bit for a thousand years.
Having learned that, he created in Middle-earth a means of displaying it in the clearest and most favourable possible light. Its reintroduction would be small -- just three books among the overwhelming flood of books published every year -- but as large as he could make it; and he was very conscious (no man has been more conscious of it than he) that an entire forest might spring from a handful of seed. What he did, then, was to plant in my consciousness and yours the truth that society need not be as we see it around us.