Out of these two have been extracted the famous rules which the French call _Des Trois Unites_, or the Three Unities, which ought to be observed in every regular play; namely, of time, place, and action. The unity of time they comprehend in twenty-four hours, the compass of a natural day, or as near as it can be contrived; and the reason of it is obvious to every one,--that the time of the feigned action, or fable of the play, should be proportioned as near as can be to the duration of that time in which it is represented: since therefore all plays are acted on the theatre in a space of time much within the compass of twenty-four hours, that play is to be thought the nearest imitation of nature, whose plot or action is confined within that time. And, by the same rule which concludes this general proportion of time, it follows, that all the parts of it are (as near as may be) to be equally subdivided; namely, that one act take not up the supposed time of half a day, which is out of proportion to the rest; since the other four are then to be straitened within the compass of the remaining half: for it is unnatural, that one act, which being spoke or written, is not longer than the rest, should be supposed longer by the audience; it is therefore the poet's duty, to take care, that no act should be imagined to exceed the time in which it is represented on the stage; and that the intervals and inequalities of time be supposed to fall out between the acts. This rule of time, how well it has been observed by the ancients, most of their plays will witness. You see them in their tragedies, (wherein to follow this rule is certainly most difficult,) from the very beginning of their plays, falling close into that part of the story which they intend for the action, or principal object of it, leaving the former part to be delivered by narration: so that they set the audience, as it were, at the post where the race is to be concluded; and saving them the tedious expectation of seeing the poet set out and ride the beginning of the course, they suffer you not to behold him, till he is in sight of the goal, and just upon you.