Nay, they are more within the control of the critical power. It is the business of the critical power, as I said in the words already quoted, "in all branches of knowledge, theology, philosophy, history, art, science, to see the object as in itself it really is." Thus it tends, at last, to make an intellectual situation of which the creative power can profitably avail itself. It tends to establish an order of ideas, if not absolutely true, yet true by comparison with that which it displaces; to make the best ideas prevail. Presently these new ideas reach society, the touch of truth is the touch of life, and there is a stir and growth everywhere; out of this stir and growth come the creative epochs of literature. Or, to narrow our range, and quit these considerations of the general march of genius and of society,--considerations which are apt to become too abstract and impalpable,--every one can see that a poet, for instance, ought to know life and the world before dealing with them in poetry; and life and the world being in modern times very complex things, the creation of a modern poet, to be worth much, implies a great critical effort behind it; else it must be a comparatively poor, barren, and short-lived affair. This is why Byron's poetry had so little endurance in it, and Goethe's so much; both Byron and Goethe had a great productive power, but Goethe's was nourished by a great critical effort providing the true materials for it, and Byron's was not; Goethe knew life and the world, the poet's necessary subjects, much more comprehensively and thoroughly than Byron. He knew a great deal more of them, and he knew them much more as they really are.