The modern world has thus tended to oscillate between extremes in its attitude towards the imagination, so that we still have to turn to ancient Greece for the best examples of works in which the imagination is at once disciplined and supreme. Aristotle, I pointed out, is doing little more than give an account of this Greek practice when he says that the poet ranks higher than the historian because he achieves a more general truth, but that he can achieve this more general truth only by being a master of illusion. Art in which the illusion is not disciplined to the higher reality counts at best on the recreative side of life. “Imagination,” says Poe, “feeling herself for once unshackled, roamed at will among the ever-changing wonders of a shadowy and unstable land.”[293] To take seriously the creations of this type of imagination is to be on the way towards madness. Every madhouse, indeed, has inmates who are very imaginative in the fashion Poe here describes. We must not confuse the concentric or ethical with the eccentric imagination if we are to define rightly the terms classic and romantic or indeed to attain to sound criticism at all. My whole aim has been to show that a main stream of emotional sophistry that takes its rise in the eighteenth century and flows down through the nineteenth involves just such a confusion. The general distinction between the two types of imagination would seem sufficiently clear. To apply the distinction concretely is, it must be admitted, a task infinitely difficult and delicate, a task that calls for the utmost degree of the _esprit de finesse_. In any particular case there enters an element of vital novelty. The relation of this vital novelty to the ethical or permanent element in life is something that cannot be determined by any process of abstract reasoning or by any rule of thumb; it is a matter of immediate perception. The art of the critic is thus hedged about with peculiar difficulties. It does not follow that Aristotle himself because he has laid down sound principles in his Poetics, would always have been right in applying them. Our evidence on this point is as a matter of fact somewhat scanty. Having thus admitted the difficulty of the undertaking we may ourselves attempt a few concrete illustrations of how sound critical standards tended to suffer in connection with the romantic movement. Leaving aside for the moment certain larger aspects of the ethical imagination that I am going to discuss presently, let us confine ourselves to poetry. Inasmuch as the ethical imagination does not in itself give poetry but wisdom, various cases may evidently arise: a man may be wise without being poetical; he may be poetical without being wise; he may be both wise and poetical.