Institutio Oratoria
Quintilian
Quintilian. Institutio Oratoria, Volume 1-4. Butler, Harold Edgeworth, translator. Cambridge, Mass; London: Harvard University Press, William Heinemann Ltd., 1920-1922.
For while the beginnings and conclusions of periods, where the sense begins or ends, are the most important, it is none the less the fact that the middle portion may involve some special efforts which necessitate slight pauses. Remember that the feet of a runner, even though they do not linger where they fall, still leave a footprint. Consequently not only must commata and cola begin and end becomingly, but even in parts which are absolutely continuous without a breathing space, there must be such almost imperceptible pauses.
Who, for example, can doubt that there is but one thought in the following passage and that it should be pronounced without a halt for breath? Animadverti, idlices, omnem accusatoris oralionem in duas divisan esse parties [*](pro Cluent. i. 1. I note, gentlemen, that the speech for the prosecution falls sharply into two divisions. ) Still the groups formed by the first two words, the next three, and then again by the next two and three, have each their own special rhythms and cause a slight check in our breathing: at least such is the opinion of specialists in rhythm.
And just in proportion as these small segments of the period are grave or vigorous, slow or rapid, languid or the reverse, so will the periods which they go to form be severe or luxuriant, compact or loose.
Again, the conclusions
Ut adeas, tantum dabis would be a bad conclusion, for it forms the last portion of an iambic trimeter: but it is followed by ut cibum vestitumque introferre liceat, tantum: [*](Verr. V. xliv. 118. To see him, you will pay so much, and so much to bring in food and clothing. No one refused. ) the rhythm is still abrupt but is strengthened and supported by the last phrase of all, nemo recusabat.