Let me be permitted to quote these words of my own, as uttering the thought which should, in my opinion, go with us and govern us in all our study of poetry. In the present work it is the course of one great contributory stream to the world-river of poetry that we are invited to follow. We are here invited to trace the stream of English poetry. But whether we set ourselves, as here, to follow only one of the several streams that make the mighty river of poetry, or whether we seek to know them all, our governing thought should be the same. We should conceive of poetry worthily, and more highly than it has been the custom to conceive of it. We should conceive of it as capable of higher uses, and called to higher destinies than those which in general men have assigned to it hitherto. More and more mankind will discover that we have to turn to poetry to interpret life for us, to console us, to sustain us. Without poetry, our science will appear incomplete; and most of what now passes with us for religion and philosophy will be replaced by poetry. Science, I say, will appear incomplete without it. For finely and truly does Wordsworth call poetry "the impassioned expression which is in a countenance of all science"[64] and what is a countenance without its expression? Again, Wordsworth finely and truly calls poetry "the breath and finer spirit of all knowledge":[64] our religion, parading evidences such as those on which the popular mind relies now; our philosophy, pluming itself on its reasonings about causation and finite and infinite being; what are they but the shadows and dreams and false shows of knowledge? The day will come when we shall wonder at ourselves for having trusted to them, for having taken them seriously; and the more we perceive their hollowness, the more we shall prize "the breath and finer spirit of knowledge" offered to us by poetry.