Purney belongs to the small group of early eighteenth-century critics who tended to reject the aesthetics based upon authority and pre-established definitions of the _genres_, and to evolve one logically from the nature of the human mind and the sources of its enjoyment; in other words, who turned attention from the objective work of art to the subjective response. These men, such as Dennis and Addison, were not searching for an aesthetics of safety, one that would produce unimpeachable correctness; Purney frequently underscored his preference for a faulty and irregular work that is alive to a meticulous but dull one. This is not to be understood as praise of the irregular: the rules of poetry must be established, but they must be founded rationally on the ends of poetry, pleasure and profit, and the psychological process by which they are received, and not solely on the practices and doctrines of the ancients. Taking his cue from the Hobbesian and Lockian methodology of Addison's papers of the pleasures of the imagination without delving into Addison's sensational philosophy, Purney outlined an extensive critical project to investigate (1) "the Nature and Constitution of the human Mind, and what Pleasures it is capable of receiving from Poetry"; (2) the best methods of exciting those pleasures; (3) the rules whereby these methods may be incorporated into literary form (_Works_, ed. White, p. 48). It is this pattern of thought that regulates the _Full Enquiry_. Perhaps more than any other poetic type, the pastoral of the Restoration and the early eighteenth century was dominated by classical tradition; the verse composed was largely imitative of the eclogues of Theocritus and Virgil, especially the latter, and criticism of the form was deduced from their practices or from an assumption that the true pastoral of antiquity was the product of the Golden Age. Of this mode of criticism Rapin and Pope were the leading exemplars. In opposition, Fontenelle, Tickell (if he was the author of the _Guardian_ essays on the pastoral), and Purney developed their theories empirically and hence directed the pastoral away from the classical tradition. (On these two schools see J.E. Congleton, "Theories of Pastoral Poetry in England, 1684-1717," _SP_, XLI, 1944, pp. 544-575.) Although Purney adopted a modification of Aristotle's critical divisions into Fable, Character, Sentiment, and Diction, and took for granted the doctrine of the distinction of _genres_, he otherwise rejected traditional formulae and critical tenets, and began with the premise that man is most delighted by the imaginative perception of the states of life for which he would willingly exchange his own. These are "the busy, great, or pompous" (depicted in tragedy and the epic) and "the retir'd, soft, or easy" (depicted in the pastoral). From this analysis of "the Nature of the Human Mind," the characteristics of the true pastoral, such as the avoidance of the hardships and vulgarities