Before Dr. Warburton’s edition, “Critical Observations on Shakespeare” had been published by Mr. Upton, a man skilled in languages, and acquainted with books, but who seems to have had no great vigour of genius or nicety of taste.  Many of his explanations are curious and useful, but he likewise, though he professed to oppose the licentious confidence of editors, and adhere to the old copies, is unable to restrain the rage of emendation, though his ardour is ill seconded by his skill.  Every cold empirick, when his heart is expanded by a successful experiment, swells into a theorist, and the laborious collator some unlucky moment frolicks in conjecture.

“Critical, historical and explanatory notes” have been likewise published upon Shakespeare by Dr. Grey, whose diligent perusal of the old English writers has enabled him to make some useful observations.  What he undertook he has well enough performed, but as he neither attempts judicial nor emendatory criticism, he employs rather his memory than his sagacity.  It were to be wished that all would endeavour to imitate his modesty who have not been able to surpass his knowledge.

I can say with great sincerity of all my predecessors, what I hope will hereafter be said of me, that not one has left Shakespeare without improvement, nor is there one to whom I have not been indebted for assistance and information.  Whatever I have taken from them it was my intention to refer to its original authour, and it is certain, that what I have not given to another, I believed when I wrote it to be my own.  In some perhaps I have been anticipated; but if I am ever found to encroach upon the remarks of any other commentator, I am willing that the honour, be it more or less, should be transferred to the first claimant, for his right, and his alone, stands above dispute; the second can prove his pretensions only to himself, nor can himself always distinguish invention, with sufficient certainty, from recollection.

They have all been treated by me with candour, which they have not been careful of observing to one another.  It is not easy to discover from what cause the acrimony of a scholiast can naturally proceed.  The subjects to be discussed by him are of very small importance; they involve neither property nor liberty; nor favour the interest of sect or party.  The various readings of copies, and different interpretations of a passage, seem to be questions that might exercise the wit, without engaging the passions.  But, whether it be, that “small things make mean men proud,” and vanity catches small occasions; or that all contrariety of opinion, even in those that can defend it no longer, makes proud men angry; there is often found in commentaries a spontaneous strain of invective and contempt, more eager and venomous than is vented by the most furious controvertist in politicks against those whom he is hired to defame.