Book 10
5.12
Akin to these are the proof or refutation of general statements. For such statements are a kind of decree or rule, and whatever problem may arise from the thing, may equally arise from the decision passed upon the thing. Then there are commonplaces, See II. i 9–11 and iv. 22. which, as we know, have often been written by orators as a form of exercise. The man who has practised himself in giving full treatment to such simple and uncomplicated themes, will assuredly find his fluency increased in those subjects which admit of varied digression, and will be prepared to deal with any case that may confront him, since all cases ultimately turn upon general questions.
