The Apologie of Sidney is, in truth, what would now be called a Philosophy of Poetry. It is philosophy taken from the side of the moralist; for that was the side to which the disputants had confined themselves, and in which—altogether apart from the example of others—the interest of Sidney, as man of action, inevitably lay. It is philosophy as conceived by the mind of a poet. But, none the less, it pierces to the eternal problems which underlie the workings of all creative art, and presents them with a force, for the like of which we must go back to Plato and Aristotle, or look forward to the philosophers and inspired critics of a time nearer our own. It recalls the Phadrus and the Ion; it anticipates the utterance of a still more kindred spirit, the Defence of Poetry by Shelley.
Philosopher as he was, Sidney arranges his thoughts in the loose order of the poet or the orator. It may be well, therefore, to give a brief sketch of his argument; and to do so without much regard to the arrangement of the Apologie itself.
The main argument of the Apologie may indeed be called a commentary on the saying of Aristotle, cited by Sidney himself, that "Poetry is more philosophical and more studiously serious than History"—that is, as Sidney interprets it, than the scientific fact of any kind; or again, on that yet more pregnant saying of Shelley, that "poets are the unacknowledged legislators of the world". Gosson had denounced poetry as "the vizard of vanity, wantonness, and folly"; or, in Sidney's paraphrase, as "the mother of lies and the nurse of abuse". Sidney replies by urging that of all arts poetry is the most true and the most necessary to men.
All learning, he pleads, and all culture begin with poetry. Philosophy, religion, and history herself, speak through the lips of poetry. There is indeed a sense in which poetry stands on higher ground than any science. There is no science, not even metaphysics, the queen of all sciences, that does not "build upon nature", and that is not, so far, limited by the facts of nature. The poet alone is "not tied to any such subjection"; he alone "freely ranges within the zodiac of his own wit".
This, no doubt, is dangerous ground, and it is enforced by still more dangerous illustrations. But Sidney at once guards himself by insisting, as Plato had done before him, that the poet too is bound by laws which he finds but does not make; they are, however, laws not of fact but of thought, the laws of the idea—that is, of the inmost truth of things, and of God. Hence it is that the works of the poet seem to come from God, rather than from man. They stand rather on a level with nature, the material of all sciences, than with the sciences themselves, which are nothing more than man's interpretation of nature. In some sense, indeed, they are above nature; they stand midway between nature and him who created nature. They are a first nature, "beyond and over the works of that second nature". For they are the self-revelation of that which is the noblest work of God, and which in them finds utterance at its best and brightest.
Thus, so far from being the "mother of lies", poetry is the highest form of truth. Avowedly so, in what men have always recognized to be the noblest poetry, the psalms and parables and other writings that "do imitate the inconceivable excellences of God". To a less degree, but still avowedly, in that poetry whose theme is philosophy or history. And so essentially, however men may overlook it, in that poetry which, professedly dealing with human life as we know it, does not content itself with reproducing the character of this man or that, but "reined only with learned discretion, ranges into the divine consideration of what may be and should be"—of the universal and complete rather than the individual and imperfect.
But, if truth be the essence of the poet's work, "the right describing note to know a poet by", it would seem that the outward form of it, the metre and the ornament, are of little moment. "There have been many most excellent poets that never versified." And verse is nothing more than a means, and not the only means, of securing a "fitting raiment" for their matter and suiting their manner "according to the dignity of their subject". In this suggestion—that harmonious prose may, for certain forms of poetic thought, be hardly less suitable than verse—Sidney is at one with Shelley. And neither critic must be taken to disparage verse, or to mean more than that the matter, the conception, is the soul of poetry, and that the form is only of moment so far as it aids—as undoubtedly it does aid—to "reveal the soul within". It is rather as a witness to the whole scope of their argument than as a particular doctrine, to be left or taken, that the suggestion is most profitably regarded.
Having settled the speculative base of poetry, Sidney turns to a yet more cherished theme, its influence upon character and action. The "highest end" of all knowledge, he urges, is "the knowledge of a man's self, with the end of well doing and not of well knowing only". Now by no artist is this end served so perfectly as by the poet. His only serious rivals are the moral philosopher and the historian. But neither of these flies so straight to his mark as the poet. The one gives precepts that fire no heart to action; the other gives examples without the precepts that should interpret and control them. The one lives in the world of ideas, the other in the world of hard and literal fact. Neither, therefore, has power to bridge the gulf that parts thought from action; neither can hope to take hold of beings in whose life, by its very nature, thought and action are indissolubly interwoven. "Now doth the peerless poet perform both. For whatsoever the philosopher saith should be done, he giveth a perfect picture of it in some one, by whom he presupposeth it was done. So as he coupleth the general notion with the particular example …. Therein of all sciences is our poet the monarch."
Once more we feel that Sidney is treading upon dangerous ground. But once more he saves himself by giving a wider definition both to thought and action, both to "well knowing and to well doing", than is common with moralists. By the former most moralists are apt to understand the bare "precept", thought as crystallized in its immediate bearing upon action. By the latter they commonly mean the passive rather than the active virtues, temperance and self-restraint rather than energy and resolve. From both these limitations Sidney, on the whole, is nobly free.
To him the "delight which is all the good fellow poet seemeth to promise", "the words set in delightful proportion and prepared for the well enchanting skill of music", "the tale which holdeth children from play and old men from the chimney corner"—all these, its indefinable and purely artistic elements, are an inseparable part of the "wisdom" which poetry has to offer. In other words, it is the frame of mind produced by poetry, the "thought hardly to be packed into the narrow act", no less than the prompting to this action or to that, which Sidney values in the work of the poet. And if this be true, none but the most fanatical champion of "art for art's sake" will dispute the justice of his demands on poetry. None but such will deny that, whether by attuning the mind to beauty and nobleness, or by means yet more direct and obvious, art must have some bearing upon the life of man and on the habitual temper of his soul. No doubt, we might have wished that, in widening the scope of poetry as a moral influence, Sidney had been yet more explicit than in fact he is. We cannot but regret that, however unjustly, he should have laid himself open to the charge of desiring to turn poetry into sermons. But it is bare justice to point out that such a charge cannot fairly be brought against him; or that it can only be brought with such qualifications as rob it of its sting.