The distinction between classic and romantic worked out by the Schlegels and spread abroad by Madame de Staël was, then, largely associated with a certain type of mediævalism. Nevertheless one cannot insist too strongly that the new school deserved to be called romantic, not because it was mediæval, but because it displayed a certain quality of imagination in its mediævalism. The longing for the Middle Ages is merely a very frequent form of nostalgia, and nostalgia I have defined as the pursuit of pure illusion. No doubt a man may be mediæval in his leanings and yet very free from nostalgia. He may, for example, prefer St. Thomas Aquinas to any modern philosopher on grounds that are the very reverse of romantic; and in the attitude of any particular person towards the Middle Ages, romantic and unromantic elements may be mingled in almost any conceivable proportion; and the same may be said of any past epoch that one prefers to the present. Goethe, for instance, as has been remarked, took flight from his own reality, but he did not, like the romanticists, take flight from all reality. The classical world in which Goethe dwelt in imagination during his latter years, in the midst of a very unclassical environment, was to some extent at least real, though one can discern even in the case of Goethe the danger of a classicism that is too aloof from the here and now. But the mediævalist, in so far as he is romantic, does not turn to a mediæval reality from a real but distasteful present. Here as elsewhere his first requirement is not that his “vision” should be true, but that it should be rich and radiant; and the more “ideal” the vision becomes in this sense, the wider the gap that opens between poetry and life. We are thus brought back to the problem of the romantic imagination or, one may term it, the eccentric imagination. The classical imagination, I have said, is not free thus to fly off at a tangent, to wander wild in some empire of chimeras. It has a centre, it is at work in the service of reality. With reference to this real centre, it is seeking to disengage what is normal and representative from the welter of the actual. It does not evade the actual, but does select from it and seek to impose upon it something of the proportion and symmetry of the model to which it is looking up and which it is imitating. To say that the classicist (and I am speaking of the classicist at his best) gets at his reality with the aid of the imagination is but another way of saying that he perceives his reality only through a veil of illusion. The creator of this type achieves work in which illusion and reality are inseparably blended, work which gives the “illusion of a higher reality.”