When Aristotle lays down that poets describe the thing that might be, but that the historian (like the natural historians above mentioned) merely describes that which has been, and that poetry is something of “more philosophic, graver import than history because its statements are of a universal nature” so far his idea of poetry tallies with our own. But when he explains his “might be” as meaning the “probable and necessary” according to our every-day experience of life, then we feel the difference between the Classical and Romantic conceptions of the art--Aristotle was trying to weed poetry of all the symbolic extravagances and impossibilities of the dream state in which it seems to have originated, and to confine it within rational and educative limits. Poetry was with him only an intuitive imitation of how typical men think and react upon each other when variously stimulated. It was what we might call the straight goods of thought conveyed in the traditional magic hampers; but there proved to be difficulties in the packing; the Classical ideal was, in practice, modified by the use of heroic diction and action, conventional indications to the audience that “imitation” was not realism, and that there must be no criticisms on that score; every one must “go under” to the hypnotic suggestion of the buskin and the archaic unnatural speech, and for once think ideally. For the same reason the Classical doctrine lays stress on the importance of the set verse-forms and the traditional construction of drama. For the benefit of my scientific readers, if my literary friends promise not to listen to what I am saying, I will attempt a definition of Classical and Romantic notions of Poetry:-- Classical is characteristic and Romantic is Metamorphic, that is, though they are both expressions of a mental conflict, in Classical poetry this conflict is expressed within the confines of waking probability and logic, in terms of the typical interaction of typical minds; in Romantic poetry the conflict is expressed in the illogical but vivid method of dream-changings.