Institutio Oratoria
Quintilian
Quintilian. Institutio Oratoria, Volume 1-4. Butler, Harold Edgeworth, translator. Cambridge, Mass; London: Harvard University Press, William Heinemann Ltd., 1920-1922.
Finally, he must confine himself to certain definite bounds, and for this division is absolutely necessary. When to the best of his ability he has dealt fully with all the points which he has advanced, he will know that he has reached his goal. The precepts just given are dependent on theory. Those to which I now come depend on individual study. We must acquire a store of the best words and phrases on lines that I have already laid down, while our style must be formed by continuous and conscientious practice in writing, so that even our improvisations may reproduce the tone of our writing, and after writing much, we must give ourselves frequent practice in speaking.
For facility is mainly the result of habit and exercise and, if it be lost only for a brief time, the result will be not merely that we fall short of the requisite rapidity, but that our lips will become clogged and slow to open. For although we need to possess a certain natural nimbleness of mind to enable us, while we are saying what the instant demands, to build up what is to follow and to secure that there will always be some thought formed and conceived in advance ready to serve our voice, none the less,
it is scarcely possible either for natural gifts or for methodic art to enable the mind to grapple simultaneously with such manifold duties, and to be equal at one and the same time to the tasks of invention, arrangement, and style, together with what we are uttering at the moment, what we have got to say next and what we have to look to still further on, not to mention the fact that it
For our mental activities must range far ahead and pursue the ideas which are still in front, and in proportion as the speaker pays out what he has in hand, he must make advances to himself from his reserve funds, in order that, until we reach our conclusion, our mind's eye may urge its gaze forward, keeping time with our advance: otherwise we shall halt and stumble, and pour forth short and broken phrases, like persons who can only gasp out what they have to say.