Institutio Oratoria
Quintilian
Quintilian. Institutio Oratoria, Volume 1-4. Butler, Harold Edgeworth, translator. Cambridge, Mass; London: Harvard University Press, William Heinemann Ltd., 1920-1922.
Even the dactyl ought not to precede a final spondee, since we condemn verse-endings at the period's close. The bacchius is employed at the conclusion, sometimes in conjunction with itself as in venenum timerss [*](pro Cael. xiv. 33. That you should fear poison. ) while it is also effective when a choreus and spondee are placed before it as in ut venenum timeres. Its opposite, the palimbacchius, is also employed as a conclusion (unless, of course, we insist that the last syllable of a sentence is always long), and is best preceded by a molossus, as in civis Romanus sum, [*](Verr. v. lxii. 162. ) or by a bacchius, as in quod hie potest, nos possemus. [*](pro Lig. iv. 10. )
It would, however, be truer to say that in such cases the conclusion consists of a choreus preceded by a spondee, for the rhythm is concentrated in nos possemus and Romanus sum. The dichoreus, which is the repetition of one and the same foot, may also form the conclusion, and was much beloved by the Asiatic school: Cicero illustrates it by Patris dictum sapiens temeritasfilii comprobavit. [*](Orat. Ixiii. 214. The wise temerity of the son confirmed the statement of the father. )