Such weight and vehemence of delivery, sometimes conceding a benignant smile, oftener relying on arrogance,[37] was the bodily expression of the impressiveness (δεινότης) cultivated no less assiduously in style. The sophist was over-expressive lest for a moment he should cease to be impressive. The audience need not be held to any course of thought; it must not be held too long by any one device of style; but it must unflaggingly admire. It must be spellbound. The constant implication of Philostratus probably echoes the ideal of orator and audience alike: behold a great speaker! b. DILATION Such oratory must be dilated, even inflated. That it was so in fact any one may satisfy himself who has the patience. The amplification[38] practised by Cicero and taught by Quintilian, though in print it may seem over-anxious, is an oratorical necessity. It is not merely Greek expansiveness; for it moves also the more stinted Latin. In any language it must almost always be practised as a means to oral clearness.[39] But sophistic amplification has no such warrant. It is often purely decorative. Instead of marking a stage of progress, it often merely dwells on a picture, or elaborates a truism, or acts out a mood. It is there for itself, expecting its own applause. Many of the figures of speech are devices of dilation; for sophistic is an art not only of elaboration, but of elaborateness. (1) _Ecphrasis_ Without enumerating devices that constitute a large part of sophistic, we may see the characteristic dilation at the full in the single form known as ἔκφρασις.[40] An ecphrasis is a separable decorative description, usually of a stock subject. “I will draw this for you in words,” says Himerius,[41] using the formula of introduction, “and will make your ears serve for eyes.” The natural beauty of a prospect or of the human body is detailed for admiration, even oftener the artistic beauty of statue or temple. The orator turns on, as it were, a storm, a feast, the prospect of a city. The essentially artificial character of the ecphrasis is obvious in the favorite exercise of word-painting a peacock.[42] Apparently a boy could carry this peacock from school to the platform and continue to use it with merely verbal variations. Of course the ecphrasis might rise to a higher level. So it did often. An accomplished orator might make it splendid, even really moving. Oratory cannot afford to neglect the appeal of oral description. None the less the ecphrasis had two essential vices. First it was extraneous, separable, detachable, a clear sign that sequence did not count. Secondly, instead of following the Aristotelian counsels of specific concrete imagery, it habitually generalized and rapidly became conventional.