The demonstrative is that which concerns itself with the praise or blame of some particular individual; the deliberative is that which, having its place in discussion and in political debate, comprises a deliberate statement of one's opinion; the judicial is that which, having its place in judicial proceedings, comprehends the topics of accusation and defence; or of demand and refusal. And, as our own opinion at least inclines, the art and ability of the orator must be understood to be conversant with these tripartite materials. VI For Hermagoras, indeed, appears neither to attend to what he is saying, nor to understand what he is promising, for he divides the materials of an orator into the cause, and the examination. The cause he defines to be a thing which has in itself a controversy of language united with the interposition of certain characters. And that part, we too say, is assigned to the orator, for we give him those three parts which we have already mentioned,--the judicial, the deliberative, and the demonstrative. But the examination he defines to be that thing which has in itself a controversy of language, without the interposition of any particular characters, in this way--"Whether there is anything good besides honesty?"--"Whether the senses may be trusted?"--"What is the shape of the world?"--"What is the size of the sun?" But I imagine that all men can easily see that all such questions are far removed from the business of an orator, for it appears the excess of insanity to attribute those subjects, in which we know that the most sublime genius of philosophers has been exhausted with infinite labour, as if they were inconsiderable matters, to a rhetorician or an orator.