Shelley, who had dabbled in chemistry for the love of science, knew, as well as we know, that a cloud is but moisture evaporated from the earth, that there is no Valkyrie in it. But that does not hinder him from making such a cloud a thing of life, and causing it to sing—

I wield the flail of the lashing hail
And whiten the green plains under;
And then again I dissolve it in rain
And laugh as I pass in thunder.
I sift the snow on the mountains below,
And their great pines groan aghast;
And all the night 'tis my pillow white,
While I sleep in the arms of the blast.

Neither his studies in natural science, nor his economic and moral readings in Godwin and Condorcet could repress, or even tended to repress, the flight of Shelley's imagination. Nor did Goethe's original and almost professional scientific work in botany, anatomy, and optics prevent the creation of his Faust or the singing of his touching ballads. And when we question the compatibility of historical knowledge with the poetry of epic or romantic creations, do we suppose that Tennyson, while writing the Idylls of the King, believed in the stories of Arthur, of Lancelot, of Galahad, or of the Holy Grail? When Morris composed the Earthly Paradise, had his imagination no freedom of flight because stubborn facts of history and geography clipped its pinions?

The truth is that there are two ways of looking at existing things, two ways of handling them; and neither way is false. The scientist's way we all understand. It is the way of the microscope and the crucible. It arrives at definite physical facts. It sets forth the material constitution and physical laws of objects. But to the poet, says Mrs. Browning—

Every natural flower which grows on earth
Implies a flower on the spiritual side.

And what is true of flowers is true of suns and stars and living creatures and all that science contemplates. Science is knowledge, while poetry, asserts Wordsworth, is "the breath and finer spirit of all knowledge"; it is "the impassioned expression which is in the countenance of all science." There is a poetic truth, and there is a scientific truth, compatible one with the other, complementary one to the other. Perhaps the most prosaic mind that ever existed was that of Jeremy Bentham, and "poetry," said that worthy, "is misrepresentation." One may be pardoned for a passing impatience when the poetical side of man is treated as a kind of amiable delusion; when one hears the shallow argument, containing a begged question, that, inasmuch as the poet imagines in things what is really not there at all, he is so far a wanderer from the truth and an enemy of science. The answer is very brief; the poet does not imagine something which is not there. A beauty or a suggestion is a truth, and the poet sees a beauty or a suggestion. He would indeed be false and an enemy to science if he said that a primrose by the river's brim was a buttercup, or that it was red when it is yellow, but it is no fiction when he declares that the primrose tells him this or that of nature or of God. It may not tell the scientist anything of the kind, but that is because the scientist does not look for such a thing in it, does not understand or seek to understand its language. "The eye of the intellect," says Carlyle, "sees in all objects what it brings with it the means of seeing." Say, if you like, that it is really the poet himself who puts the language, the message, into flower or tree or waterfall. That only removes the argument a step further back. How is he prompted to find such language there?

And who knows but that, by his exquisite sensibility and gift of sympathy, the poet may be discovering truths more valuable to us in the end than all the truths of science? The Newtons and Faradays and Lyells perform their several tasks in the region of great literal physical facts and laws; the Shakespeares and Wordsworths and Shelleys perform theirs in the region of things ideal, in the expression of potent suggestions and stimulations. We cannot afford to treat as weak fantastic enthusiasts those to whom

The meanest flower that blows can give
Thoughts that do often lie too deep for tears.

Nor can we too soon recognize the fact that what the world requires is the combined result of both forms of genius. It requires that the genius of science and the genius of poetry should unite their powers and their discoveries into one grand harmony of happiness in faith and hope and love.

One can do no better than quote from Wordsworth a passage which shows how the moral mood is transformed through the medium of the eye, when the eye gazes with poetic sympathy on nature:—