It will be thought strange, that, in enumerating the defects of this writer, I have not yet mentioned his neglect of the unities; his violation of those laws which have been instituted and established by the joint authority of poets and of criticks.

For his other deviations from the art of writing, I resign him to critical justice, without making any other demand in his favour, than that which must be indulged to all human excellence; that his virtues be rated with his failings:  But, from the censure which this irregularity may bring upon him, I shall, with due reverence to that learning which I must oppose, adventure to try how I can defend him.

His histories, being neither tragedies nor comedies, are not subject to any of their laws; nothing more is necessary to all the praise which they expect, than that the changes of action be so prepared as to be understood, that the incidents be various and affecting, and the characters consistent, natural and distinct.  No other unity is intended, and therefore none is to be sought.

In his other works he has well enough preserved the unity of action.  He has not, indeed, an intrigue regularly perplexed and regularly unravelled; he does not endeavour to hide his design only to discover it, for this is seldom the order of real events, and Shakespeare is the poet of nature:  But his plan has commonly what Aristotle requires, a beginning, a middle, and an end; one event is concatenated with another, and the conclusion follows by easy consequence.  There are perhaps some incidents that might be spared, as in other poets there is much talk that only fills up time upon the stage; but the general system makes gradual advances, and the end of the play is the end of expectation.

To the unities of time and place he has shewn no regard, and perhaps a nearer view of the principles on which they stand will diminish their value, and withdraw from them the veneration which, from the time of Corneille, they have very generally received by discovering that they have given more trouble to the poet, than pleasure to the auditor.

The necessity of observing the unities of time and place arises from the supposed necessity of making the drama credible.  The criticks hold it impossible, that an action of months or years can be possibly believed to pass in three hours; or that the spectator can suppose himself to sit in the theatre, while ambassadors go and return between distant kings, while armies are levied and towns besieged, while an exile wanders and returns, or till he whom they saw courting his mistress, shall lament the untimely fall of his son.  The mind revolts from evident falsehood, and fiction loses its force when it departs from the resemblance of reality.

From the narrow limitation of time necessarily arises the contraction of place.  The spectator, who knows that he saw the first act at Alexandria, cannot suppose that he sees the next at Rome, at a distance to which not the dragons of Medea could, in so short a time, have transported him; he knows with certainty that he has not changed his place; and he knows that place cannot change itself; that what was a house cannot become a plain; that what was Thebes can never be Persepolis.