Therefore I would fain have such of my readers be assured, that however they may have been aw'd, and over-born by pompous terms of art, hard names, and the parade of seemingly magnificent collections of pictures and statues; they are in a much fairer way, ladies, as well as gentlemen, of gaining a perfect knowledge of the elegant and beautiful in artificial, as well as natural forms, by considering them in a systematical, but at the same time familiar way, than those who have been prepossess'd by dogmatic rules, taken from the performances of art only: nay, I will venture to say, sooner, and more rationally, than even a tolerable painter, who has imbibed the same prejudices.
The more prevailing the notion may be, that painters and connoisseurs are the only competent judges of things of this sort; the more it becomes necessary to clear up and confirm, as much as possible, what has only been asserted in the foregoing paragraph: that no one may be deterr'd, by the want of such previous knowledge, from entring into this enquiry.
The reason why gentlemen, who have been inquisitive after knowledge in pictures, have their eyes less qualified for our purpose, than others, is because their thoughts have been entirely and continually employ'd and incumber'd with considering and retaining the various manners in which pictures are painted, the histories, names, and characters of the masters, together with many other little circumstances belonging to the mechanical part of the art; and little or no time has been given for perfecting the ideas they ought to have in their minds, of the objects themselves in nature: for by having thus espoused and adopted their first notions from nothing but imitations, and becoming too often as bigotted to their faults, as their beauties, they at length, in a manner, totally neglect, or at least disregard the works of nature, merely because they do not tally with what their minds are so strongly prepossess'd with.
Were not this a true state of the case, many a reputed capital picture, that now adorns the cabinets of the curious in all countries, would long ago have been committed to the flames: nor would it have been possible for the Venus and Cupid, represented by the figure [under Fig. 49 T p. I], to have made its way into the principal apartment of a palace.
It is also evident that the painter's eye may not be a bit better fitted to receive these new impressions, who is in like manner too much captivated with the works of art; for he also is apt to pursue the shadow, and drop the substance. This mistake happens chiefly to those who go to Rome for the accomplishment of their studies; as they naturally will, without the utmost care, take the infectious turn of the connoisseur, instead of the painter: and in proportion as they turn by those means bad proficients in their own arts, they become the more considerable in that of a connoisseur. As a confirmation of this seeming paradox, it has ever been observ'd at all auctions of pictures, that the very worst painters sit as the most profound judges, and are trusted only, I suppose, on account of their disinterestedness.
I apprehend a good deal of this will look more like resentment, and a design to invalidate the objections of such as are not likely to set the faults of this work in the most favourable light; than merely for the encouragement, as was said above, of such of my readers, as are neither painters, nor connoisseurs: and I will be ingenuous enough to confess something of this may be true; but, at the same time, I cannot allow that this alone would have been a sufficient motive to have made me risk giving offence to any; had not another consideration, besides that already alledg'd, of more consequence to the purpose in hand, made it necessary. I mean the setting forth, in the strongest colours, the alterations objects seemingly undergo through the prepossessions and prejudices contracted by the mind.——Fallacies, strongly to be guarded against by such as would learn to see objects truly!
Altho' the instances already given are pretty flagrant, yet it is certainly true, (as a farther confirmation of this, and for the consolation of those, who may be a little piqued at what has been said) that painters of every condition are stronger instances of the almost unavoidable power of prejudice, than any people whatever.