Institutio Oratoria

This fact is clearly understood by Cicero, who frequently shows that the sense in which he desires that prose should be rhythmical is rather that it should not lack rhythm, a deficiency which would stamp the author as a man of no taste or refinement, than that it should be tied by definite rhythmical laws, like poetry; just as, although we may not wish certain persons to be professional gymnasts, we still do not wish them to be absolutely ignorant of the art of gynmastics.

But the rounding of the period to an appropriate close which is produced by the combination of feet requires some name; and what name is there more suitable than rhythm, that is to say, the rhythm of oratory, just as the enthymeme [*](See v. xiv. 24.) is the syllogism of oratory? For my own part, to avoid incurring the calumny, from which even Cicero was not free, I ask my reader, whenever I speak of the rhythm of artistic structure (as I have done on every occasion), to understand that I refer to the rhythm of oratory, not of verse.