So long as we are conversant with the sensible qualities of things, hardly any more than the imagination seems concerned; little more also than the imagination seems concerned when the passions are represented, because by the force of natural sympathy they are felt in all men without any recourse to reasoning, and their justness recognized in every breast. Love, grief, fear, anger, joy, all these passions have, in their turns, affected every mind; and they do not affect it in an arbitrary or casual manner, but upon certain, natural, and uniform principles. But as many of the works of imagination are not confined to the representation of sensible objects, nor to efforts upon the passions, but extend themselves to the manners, the characters, the actions, and designs of men, their relations, their virtues and vices, they come within the province of the judgment, which is improved by attention, and by the habit of reasoning. All these make a very considerable part of what are considered as the objects of taste; and Horace sends us to the schools of philosophy and the world for our instruction in them. Whatever certainty is to be acquired in morality and the science of life; just the same degree of certainty have we in what relates to them in works of imitation. Indeed it is for the most part in our skill in manners, and in the observances of time and place, and of decency in general, which is only to be learned in those schools to which Horace recommends us, that what is called taste, by way of distinction, consists: and which is in reality no other than a more refined judgment. On the whole, it appears to me, that what is called taste, in its most general acceptation, is not a simple idea, but is partly made up of a perception of the primary pleasures of sense, of the secondary pleasures of the imagination, and of the conclusions of the reasoning faculty, concerning the various relations of these, and concerning the human passions, manners, and actions. All this is requisite to form taste, and the groundwork of all these is the same in the human mind; for as the senses are the great originals of all our ideas, and consequently of all our pleasures, if they are not uncertain and arbitrary, the whole groundwork of taste is common to all, and therefore there is a sufficient foundation for a conclusive reasoning on these matters.