Those who have thought it profitable to pay diligent attention to this kind of reasoning, have differed a little in the manner in which they have laid down rules, though they were aiming at the same end as far as the practice of speaking went. For some of them have said that there are five divisions of it, and some have thought that it had no more parts than could be arranged under three divisions. And it would seem not useless to explain the dispute which exists between these parties, with the reasons which each allege for it; for it is a short one, and not such that either party appears to be talking nonsense. And this topic also appears to us to be one that it is not at all right to omit in speaking. Those who think that it ought to be arranged in five divisions, say that first of all it is desirable to explain the sum of the discussion, in this way:--Those things are better managed which are done on some deliberate plan, than those which are conducted without any steady design. This they call the first division. And then they think it right that it should be further proved by various arguments, and by as copious statements as possible; in this way:--"That house which is governed by reason is better appointed in all things, and more completely furnished, than that which is conducted at random, and on no settled plan;--that army which is commanded by a wise and skilful general, is governed more suitably in all particulars than that which is managed by the folly and rashness of any one. The same principle prevails with respect to sailing; for that ship performs its voyage best which has the most experienced pilot."