Institutio Oratoria

Iambic endings are less noticeable, because that metre is near akin to prose. Consequently such lines often slip from us unawares: they are specially common in Brutus as a result of his passion for severity of style; they are not infrequent in Asinius, and are sometimes even found in Cicero, as for example at the very beginning of his speech against Lucius Piso: Pro di immortales, qui hic nunc illuxit dies? [*]( An iambic trimeter. Immortal gods, what day is this has dawned? )

Equal care must however be taken to avoid any phrase of a definitely metrical character, such as the following passage from Sallust: Falso queritur de natura sua. [*](Jug. I. The human race complains of its own nature without reason. Last five feet of iambic trimeter! ) For although the language of prose is bound by certain laws, it should appear to be free. None the less Plato, despite the care which he devotes to his rhythm, has not succeeded in avoiding this fault at