By examining the old copies, I soon found that the later publishers, with all their boasts of diligence, suffered many passages to stand unauthorised, and contented themselves with Rowe's regulation of the text, even where they knew it to be arbitrary, and with a little consideration might have found it to be wrong. Some of these alterations are only the ejection of a word for one that appeared to him more elegant or more intelligible. These corruptions I have often silently rectified; for the history of our language, and the true force of our words, can only be preserved, by keeping the text of authours free from adulteration. Others, and those very frequent, smoothed the cadence, or regulated the measure; on these I have not exercised the same rigour; if only a word was transposed, or a particle Inserted or omitted, I have sometimes suffered the line to stand; for the inconstancy of the copies is such, as that some liberties may be easily permitted. But this practice I have not suffered to proceed far, having restored the primitive diction wherever it could for any reason be preferred.
The emendations, which comparison of copies supplied, I have inserted in the text; sometimes where the improvement was slight, without notice, and sometimes with an account of the reasons of the change.
Conjecture, though it be sometimes unavoidable, I have not wantonly nor licentiously indulged. It has been my settled principle, that the reading of the ancient books is probably true, and therefore is not to be disturbed for the sake of elegance, perspicuity, or mere improvement of the sense. For though much credit is not due to the fidelity, nor any to the judgement of the first publishers, yet they who had the copy before their eyes were more likely to read it right, than we who read it only by imagination. But it is evident that they have often made strange mistakes by ignorance or negligence, and that therefore something may be properly attempted by criticism, keeping the middle way between presumption and timidity.
Such criticism I have attempted to practice, and where any passage appeared inextricably perplexed, have endeavoured to discover how it may be recalled to sense, with least violence. But my first labour is, always to turn the old text on every side, and try if there be any interstice, through which light can find its way; nor would Huetius himself condemn me, as refusing the trouble of research, for the ambition of alteration. In this modest industry I have not been unsuccessful. I have rescued many lines from the violations of temerity, and secured many scenes from the inroads of correction. I have adopted the Roman sentiment, that it is more honourable to save a citizen, than to kill an enemy, and have been more careful to protect than to attack.
I have preserved the common distribution of the plays into acts, though I believe it to be in almost all the plays void of authority. Some of those which are divided in the later editions have no division in the first folio, and some that are divided in the folio have no division in the preceding copies. The settled mode of the theatre requires four intervals in the play, but few, if any, of our authour's compositions can be properly distributed in that manner. An act is so much of the drama as passes without intervention of time or change of place. A pause makes a new act. In every real, and therefore in every imitative action, the intervals may be more or fewer, the restriction of five acts being accidental and arbitrary. This Shakespeare knew, and this he practised; his plays were written, and at first printed in one unbroken continuity, and ought now to be exhibited with short pauses, interposed as often as the scene is changed, or any considerable time is required to pass. This method would at once quell a thousand absurdities.
In restoring the author's works to their integrity, I have considered the punctuation as wholly in my power; for what could be their care of colons and commas, who corrupted words and sentences. Whatever could be done by adjusting points is therefore silently performed, in some plays with much diligence, in others with less; it is hard to keep a busy eye steadily fixed upon evanescent atoms, or a discursive mind upon evanescent truth.
The same liberty has been taken with a few particles, or other words of slight effect. I have sometimes inserted or omitted them without notice. I have done that sometimes, which the other editors have done always, and which indeed the state of the text may sufficiently justify.
The greater part of readers, instead of blaming us for passing trifles, will wonder that on mere trifles so much labour is expended, with such importance of debate, and such solemnity of diction. To these I answer with confidence, that they are judging of an art which they do not understand; yet cannot much reproach them with their ignorance, nor promise that they would become in general, by learning criticism, more useful, happier or wiser.
As I practised conjecture more, I learned to trust it less; and after I had printed a few plays, resolved to insert none of my own readings in the text. Upon this caution I now congratulate myself, for every day encreases my doubt of my emendations.
Since I have confined my imagination to the margin, it must not be considered as very reprehensible, if I have suffered it to play some freaks in its own dominion. There is no danger in conjecture, if it be proposed as conjecture; and while the text remains uninjured, those changes may be safely offered, which are not considered even by him that offers them as necessary or safe.