"Aureng-Zebe" was his first performance after the failure of the "Assignation." It was acted in 1675 with general applause. "Aureng-Zebe" is a heroic, or rhyming play, but not cast in a mould quite so romantic as the "Conquest of Granada." There is a grave and moral turn in many of the speeches, which brings it nearer the style of a French tragedy. It is true, the character of Moral borders upon extravagance; but a certain licence has been always given to theatrical tyrants, and we excuse bombast in him more readily than in Almanzor. There is perhaps some reason for this indulgence. The possession of unlimited power, vested in active and mercurial characters, naturally drives them to an extravagant indulgence of passion, bordering upon insanity; and it follows, that their language must outstrip the modesty of nature. Propriety of diction in the drama is relative, and to be referred more to individual character than to general rules: to make a tyrant sober-minded is to make a madman rational. But this discretion must be used with great caution by the writer, lest he should confound the terrible with the burlesque. Two great actors, Kynaston and Booth, differed in their style of playing Morat.

The former, who was the original performer, and doubtless had his instructions from the author, gave full force to the sentiments of avowed and barbarous vainglory, which mark the character. When he is determined to spare Aureng-Zebe, and Nourmahal pleads,

"Twill not be safe to let him live an hour,"

Kynaston gave all the stern and haughty insolence of despotism to his answer,

"I'll do't to show my arbitrary power."[24]

But Booth, with modest caution, avoided marking and pressing upon the audience a sentiment hovering between the comic and terrible, however consonant to the character by whom it was delivered. The principal incident in "Aureng-Zebe" was suggested by King Charles himself. The tragedy is dedicated to Mulgrave, whose patronage had been so effectual, as to introduce Dryden and his poetical schemes to the peculiar notice of the king and duke. The dedication and the prologue of this piece throw considerable light upon these plans, as well as upon the revolution which had gradually taken place in Dryden's dramatic taste.

During the space which occurred between writing the "Conquest of Granada" and "Aureng-Zebe", our author's researches into the nature and causes of harmony of versification been unremitted, and he had probably already collected the materials of his intended English Prosodia. Besides this labour, he had been engaged in a closer and more critical examination of the ancient English poets, than he had before bestowed upon them. These studies seem to have led Dryden to two conclusions: first, that the drama ought to be emancipated from the fetters of rhyme; and secondly, that he ought to employ the system of versification, which he had now perfected, to the more legitimate purpose of epic poetry. Each of these opinions merits consideration.

However hardily Dryden stood forward in defence of the heroic plays, he confessed, even in the heat of argument, that Rhyme, though he was brave and generous, and his dominion pleasing, had still somewhat of the usurper in him. A more minute inquiry seems to have still further demonstrated the weakness of this usurped dominion; and our author's good taste and practice speedily pointed out deficiencies and difficulties, which Sir Robert Howard, against whom he defended the use of rhyme, could not show, because he never aimed at the excellencies which they impeded. The perusal of Shakespeare, on whom Dryden had now turned his attention, led him to feel, that something further might be attained in tragedy than the expression of exaggerated sentiment in smooth verse, and that the scene ought to represent not a fanciful set of agents exerting their superhuman faculties in a fairy-land of the poet's own creation, but human characters, acting from the direct and energetic influence of human passions, with whose emotions the audience might sympathise, because akin to the feelings of their own hearts. When Dryden had once discovered, that fear and pity were more likely to be excited by other causes than the logic of metaphysical love, or the dictates of fantastic honour, he must have found, that rhyme sounded as unnatural in the dialogue of characters drawn upon the usual scale of humanity, as the plate and mail of chivalry would have appeared on the persons of the actors. The following lines of the Prologue to "Aureng-Zebe," although prefixed to a rhyming play, the last which he ever wrote, express Dryden's change of sentiment on these points:

"Our author, by experience, finds it true,
'Tis much more hard to please himself than you:
And, out of no feigned modesty, this day
Damns his laborious trifle of a play:
Not that it's worse than what before he writ,
But he has now another taste of wit;
And, to confess a truth, though out of time,
Grows weary of his long-loved mistress, Rhyme.
Passion's too fierce to be in fetters bound,
And Nature flies him like enchanted ground:
What verse can do, he has performed in this,
Which he presumes the most correct of his;
But spite of all his pride, a secret shame
Invades his breast at Shakespeare's sacred name:
Awed when he hears his godlike Romans rage,
He, in a just despair, would quit the stage;
And to an age less polished, more unskilled,
Does, with disdain, the foremost honours yield."

It is remarkable, as a trait of character, that, though our author admitted his change of opinion on this long disputed point, he would not consent that it should be imputed to any arguments which his opponents had the wit to bring against him. On this subject he enters a protest in the Preface to his revised edition of the "Essay of Dramatic Poesy" in 1684:—"I confess, I find many things in this discourse which I do not now approve; my judgment being not a little altered since the writing of it; but whether for the better or the worse, I know not: neither indeed is it much material, in an essay, where all I have said is problematical. For the way of writing plays in verse, which I have seemed to favour, I have, since that time, laid the practice of it aside, till I have more leisure, because I find it troublesome and slow: but I am no way altered from my opinion of it, at least with any reasons which have opposed it; for your lordship may easily observe, that none are very violent against it, but those who either have not attempted it, or who have succeeded ill in their attempt."[25] Thus cautious was Dryden in not admitting a victory, even in a cause which, he had surrendered.