written in verse[1]; but the remains of the ancient usage soon gave way, especially when Plato had embellished prose with the charm of his captivating eloquence. Before this philosopher, Herodotus had read in the assembly of the Olympic games an history of Greece connected with that of the greater part of the neighbouring nations.[2] This work, written in a fluent style, clear and persuasive, had so enchanted the Greeks, that they had given to the nine books which he composed, the names of the nine Muses. Nevertheless, an observation which will not be wholly foreign here, is, that the admission of prose in philosophy, instead of rational poetry, produced a style of work hitherto unknown, and of which the moderns made much; I am speaking of positive history. Before this epoch, history written in verse was, as I have said, allegorical and figurative, and was occupied only with the masses without respect to individuals. Thus the evil which resulted on the one side, from the degradation experienced by poetry in one of its branches, was balanced by the good which was promised on the other, from the purification of prose for the advancement of exact knowledge.
But returning to what I said just now on the subject of rational poetry, joined by the Romans to the passionate part of that science, I will say that this union created a new style, of which Horace was the originator: this was the didactic style. This style ought not to be confused with rational poetry, of which Hesiod has made use in his poem of Works and Days, and which pertains to Eumolpœia; nor with pure rational poetry, such as one finds in the writings of Parmenides and Empedocles: it is a sort of poetry which, attaching itself to form alone, depends much upon dramatic art. The didactic, satirical, or simply descriptive poet is similar to an actor on the stage declaiming a long monologue. Rational poetry was welcomed at Rome, and drawn from the long oblivion into which it had fallen, by
