In other words, the period is a sentence movement forecast and fulfilled by the speaker, divined and held by the hearer, as a definite rhythmical and logical unit. Its characteristic is that conclusiveness which satisfies at once ear and mind. In sound and in syntax it is the opposite of formless aggregation, of the addition of clause to clause as by afterthoughts. Forethought, indeed, is its very note. Thus its typical advantages are rather for oratory than for narrative. Oratory moves by grouping around ideas; narrative, by adding image to image. The style of Herodotus is in this sense aggregative. Its aim being to proceed not from idea to idea in thought, but from fact to fact in time, it is “loosely joined,” “running on,” without other rhythmical value than fluency. That Aristotle means to disparage Herodotus when he calls this movement old and unsatisfying need hardly be inferred. Old it is typically, the movement of all early prose, of Herodotus no more than of Froissart and Villani. Unsatisfying, unpleasing to the ear (ἀηδές) it is not—in its place; but its place is not in oratory, which demands definite measures to mark definite stages of thought. Otherwise the audience is frustrated and loses the way. What Aristotle means by his comparison of the two movements is that the former is unsatisfying, not absolutely, but for the purposes of the latter, i.e., for oratory. This interpretation is confirmed by what he adds concerning the length of members, or clauses. That staccato habit of short statements which in oratory “drags the hearer headlong,”[64] unsatisfied and uncomprehending, may in narrative be actually superior. To drag the hearer headlong is sometimes precisely what a story-teller desires. Examples abound, for instance, in Victor Hugo, for whom this movement became a mannerism. Neither of the two sentence movements, which from the point of view of Aristotle’s time we may call the historical and the oratorical, has remained through the long development of prose quite the same. Narrative has developed in modern times a movement more and more consciously poetic, while history in our special modern sense has turned more and more to the conscious group-movement which he associated with oratory. To-day we see much the same difference between our prose fiction and our expository history that he saw between Herodotus and Demosthenes. But the change is in application, not in the movements themselves. It remains true, and important, that there is on the one hand a prose movement rhythmically and intellectually loose, indefinite, and current, and on the other hand a prose movement compact, conscious, concluded point by point. The latter, the periodic, remains the typical movement of public address; for the audience, in order to follow, in order “to have hold of something[65] and to get something done,” demands definite measures.[66]