Page:Prometheus Unbound - Shelley.djvu/16

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PREFACE.

same spirit: the sacred Milton was, let it ever be remembered, a republican and a bold inquirer into morals and religion. The great writers of our own age are, we have reason to suppose, the companions and forerunners of some unimagined change in our social condition or the opinions which cement it. The cloud of mind is discharging its collected lightning, and the equilibrium between institutions and opinions is now restoring or is about to be restored.

As to imitation, poetry is a mimetic art. It creates, but it creates by combination and representation. Poetical abstractions are beautiful and new, not because the portions of which they are composed had no previous existence in the mind of man or in nature, but because the whole produced by their combination has some intelligible and beautiful analogy with those sources of emotion and thought and with the contemporary condition of them: one great poet is a masterpiece of nature which another not only ought to study but must study. He might as wisely and as easily determine that his mind should no longer be the mirror of all that is lovely in the visible universe as exclude from his contemplation the beautiful which exists in the writings of a great contemporary. The