Eugenius was going to continue this discourse, when Lisideius told him, that it was necessary, before they proceeded further, to take a standing measure of their controversy; for how was it possible to be decided, who wrote the best plays, before we know what a play should be? but, this once agreed on by both parties, each might have recourse to it, either to prove his own advantages, or to discover the failings of his adversary. He had no sooner said this, but all desired the favour of him to give the definition of a play; and they were the more importunate, because neither Aristotle, nor Horace, nor any other, who had writ of that subject, had ever done it. Lisideius, after some modest denials, at last confessed he had a rude notion of it; indeed rather a description than a definition; but which served to guide him in his private thoughts, when he was to make a judgment of what others writ: that he conceived a play ought to be, "A just and lively image of human nature, representing its passions and humours, and the changes of fortune to which it is subject, for the delight and instruction of mankind." This definition (though Crites raised a logical objection against it--that it was only _à genere et fine_, and so not altogether perfect) was yet well received by the rest: and after they had given order to the watermen to turn their barge, and row softly, that they might take the cool of the evening in their return, Crites, being desired by the company to begin, spoke on behalf of the ancients, in this manner:-- If confidence presage a victory, Eugenius, in his own opinion, has already triumphed over the ancients: nothing seems more easy to him, than to overcome those whom it is our greatest praise to have imitated well; for we do not only build upon their foundations, but by their models. Dramatic Poesy had time enough, reckoning from Thespis (who first invented it) to Aristophanes, to be born, to grow up, and to flourish in maturity. It has been observed of arts and sciences, that in one and the same century they have arrived to great perfection; and no wonder, since every age has a kind of universal genius, which inclines those that live in it to some particular studies: the work then being pushed on by many hands, must of necessity go forward. Is it not evident, in these last hundred years, (when the study of philosophy has been the business of all the Virtuosi in Christendom,) that almost a new nature has been revealed to us? that more errors of the school have been detected, more useful experiments in philosophy have been made, more noble secrets in optics, medicine, anatomy, astronomy, discovered, than in all those credulous and doting ages from Aristotle to us?--so true it is, that nothing spreads more fast than science, when rightly and generally cultivated.