constituent atoms called men are to be rearranged in an ideal order as in a mathematical diagram. Shelley gives the translation of this theory into poetry. The 'Revolt of Islam' or the 'Prometheus Unbound,' with all its unearthly beauty, wearies the imagination which tries to soar into the thin air of Shelley's dreamworld; just as the intellect, trying to apply the abstract formulæ of political metaphysics to any concrete problem, feels as though it were under an exhausted receiver. In both cases we seem to have got entirely out of the region of real human passions and senses into a world, beautiful perhaps, but certainly impalpable. The great aim of moral philosophy is to unite the disjoined element, to end the divorce between reason and experience, and to escape from the alternative of dealing with empty but symmetrical formulæ or concrete and chaotic facts. No hint can be given here as to the direction in which a final solution must be sought. Whatever the true method, Wordsworth's mode of conceiving the problem shows how powerfully he grasped the questions at issue. If his doctrines are not systematically expounded, they all have a direct bearing upon the real difficulties involved. They are stated so forcibly in his noblest poems that we might almost express a complete theory in his own language. But, without seeking to make a collection of aphorisms from his poetry, we may indicate the cardinal points of his teaching.[24] The most characteristic of all his doctrines is that which is embodied in the great ode upon the 'Intimations of Immortality.' The doctrine itself--the theory that the instincts of childhood testify to the pre-existence of the soul--sounds fanciful enough; and Wordsworth took rather unnecessary pains to say that he did not hold it as a serious dogma. We certainly need not ask whether it is reasonable or orthodox to believe that 'our birth is but a sleep and a forgetting.' The fact symbolised by the poetic fancy--the glory and freshness of our childish instincts--is equally noteworthy, whatever its cause. Some modern reasoners would explain its significance by reference to a very different kind of pre-existence. The instincts, they would say, are valuable, because they register the accumulated and inherited experience of past generations. Wordsworth's delight in wild scenery is regarded by them as due to the 'combination of states that were organised in the race during barbarous times, when its pleasurable activities were amongst the mountains, woods, and waters.' In childhood we are most completely under the dominion of these inherited impulses. The correlation between the organism and its medium is then most perfect, and hence the peculiar theme of childish communion with nature.