To the end of most plays, I have added short strictures, containing a general censure of faults, or praise of excellence; in which I know not how much I have concurred with the current opinion; tut I have not, by any affectation of singularity, deviated from it.  Nothing is minutely and particularly examined, and therefore it is to be supposed, that in the plays which are condemned there is much to be praised, and in these which are praised much to be condemned.

The part of criticism in which the whole succession of editors has laboured with the greatest diligence, which has occasioned the most arrogant ostentation, and excited the keenest acrimony, is the emendation of corrupted passages, to which the publick attention having been first drawn by the violence of contention between Pope and Theobald, has been continued by the persecution, which, with a kind of conspiracy, has been since raised against all the publishers of Shakespeare.

That many passages have passed in a state of depravation through all the editions is indubitably certain; of these the restoration is only to be attempted by collation of copies or sagacity of conjecture.  The collator’s province is safe and easy, the conjecturer’s perilous and difficult.  Yet as the greater part of the plays are extant only in one copy, the peril must not be avoided, nor the difficulty refused.

Of the readings which this emulation of amendment has hitherto produced, some from the labours of every publisher I have advanced into the text; those are to be considered as in my opinion sufficiently supported; some I have rejected without mention, as evidently erroneous; some I have left in the notes without censure or approbation, as resting in equipoise between objection and defence; and some, which seemed specious but not right, I have inserted with a subsequent animadversion.

Having classed the observations of others, I was at last to try what I could substitute for their mistakes, and how I could supply their omissions.  I collated such copies as I could procure, and wished for more, but have not found the collectors of these rarities very communicative.  Of the editions which chance or kindness put into my hands I have given an enumeration, that I may not be blamed for neglecting what I had not the power to do.

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