Since poetry makes use of words, which are the principal channel of mutual communication for our thoughts and affections, and has by this means an unlimited compass in respect of time, place, &c. it must, upon the whole, have great advantages over painting.
As the pleasures of imagination are very prevalent, and much cultivated, during youth; so, if we consider mankind as one great individual, advancing in age perpetually, it seems natural to expect, that in the infancy of knowledge, in the early ages of the world, the taste of mankind would turn much upon the pleasures of this class. And agreeably to this it may be observed, that music, painting, and poetry, were much admired in ancient times; and the two last brought to great perfection. What was the real perfection of the ancient Grecian music, also how far the modern very artificial compositions ought to be allowed to excel them, must be left to those who are judges of these matters.
The beauties of oratory are very nearly allied to those of poetry, arising partly from an harmonious flow and cadence of the periods, so that uniformity and variety may be properly mixed, partly from the justness and nervousness of the expressions, and partly from the force of the arguments and motives brought together by the invention of the orator, and so disposed as to convince the judgment, excite and gain the affections. In both cases it is very necessary, that the reader or hearer should conceive favourably of the design and author, in a moral light. Poetry has the advantage of oratory, in respect of the sweetness of the numbers, and boldness of the figures; but oratory, being a real thing, and one which has great influence in many the most important transactions, does, by this reality, affect some persons more than poetry; I mean persons that are mere readers or hearers; for, as to those that are interested in the debate, to whom it is a reality, there can be no doubt.
The beauties of history will easily be understood from what is said of poetry and oratory.
It is to be observed, that poetry, and all fictitious history, borrow one chief part of their influence from their being imitations of real history, as this again does from the strong affections and passions excited by the events of life, and from the contagiousness of our tempers and dispositions.
The same kind of contrasts and coincidences, which, in low and comic things, would be wit or humour, become the brilliant passages that affect and strike us most eminently in grave poetry, in oratory, and history.
The study of the sciences has a great connexion with the natural and artificial beauties already considered, and receives great lustre from them in consequence thereof.