Book 6
3.21
locus is usually taken to mean the opposite of seriousness. This view is, however, somewhat too narrow. For to feign, to terrify, or to promise, are all at times forms of jesting. Dicacitas is no doubt derived from dico, and is therefore common to all forms of wit, but is specially applied to the language of banter, which is a humorous form of attack. Therefore, while the critics allow that Demosthenes was urbanus, they deny that he was dicax.
3.22
The essence, however, of the subject which we are now discussing is the excitement of laughter, and consequently the whole of this topic is entitled περὶ γελοίου by the Greeks. It has the same primary division as other departments of oratory, that is to say, it is concerned with things and words.
3.23
The application of humour to oratory may be divided into three heads: for there are three things out of which we may seek to raise a laugh, to wit, others, ourselves, or things intermediate. In the first case we either reprove or refute or make light of or retort or deride the arguments of others. In the second we speak of things which concern ourselves in a humorous manner and, to quote the words of Cicero, de Or. II. lxxi. 289. say things which have a suggestion of absurdity. For there are certain sayings which are regarded as folly if they slip from us unawares, but as witty if uttered ironically.
