Institutio Oratoria
Quintilian
Quintilian. Institutio Oratoria, Volume 1-4. Butler, Harold Edgeworth, translator. Cambridge, Mass; London: Harvard University Press, William Heinemann Ltd., 1920-1922.
The choreus may also be preceded by a pyrrhic, as in omnes prope cives virtute, gloria, digitiate superabat. [*](pro Cael. xiv. 34. He surpassed almost all other citizens in virtue, glory and honour. ) The dactyl also may come at the close, unless indeed it be held that, when it forms the final foot, it is transformed into a cretic: e.g. muliercula nixus in litore. [*](Verr. v. xxxiii. 86. Leaning on a worthless woman on the shore. ) The effect will be good if it is preceded by a cretic or an iambus, but unsatisfactory if it is preceded by a
If preceded by a long syllable, the trochee becomes a paean, as is the case with phrases such as sipotero, or dirit hoc Cicero, or obstat invidia. But this form of paean is specially allotted to the beginnings of sentences. The pyrrhic may close a sentence if preceded by a choreus, thereby forming a paean. [*]( As he has in the preceding clause stated that this form of paean is regarded as specially adapted to the opening of a sentence, it cannot be supposed that he commends this employment of the pyrrhic. He mentions it only to illustrate another method of forming the paean (e.g. multa bene ) by two words, the first a chores, the second a pyrrhic. His view about the employment of this form of paean is that it is sometimes used at the end, but that such a position is not advisable. ) But all these feet which end in short syllables will lack the stability required for the cadence, and should as a rule only be employed in cases where speed is required and there is no marked pause at the ends of the sentences.