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The Orations of Marcus Tullius Cicero, Volume 4

XXX. But resemblance is chiefly seen in things which are contrary to one another, or equal to one another, and in those things which fall under the same principle. In things contrary to one another, in this manner:—"For if it is right that those men should be pardoned who have injured me unintentionally, it is also fitting that one should feel no gratitude towards those who have benefited me because they could not help it."

In things equal to one another, in this way:—"For as a place without a harbour cannot be safe for ships, so a mind without integrity cannot be trustworthy for a man's friends." In those things which fall under the same principle a probable argument is considered in this way:—"For if it be not discreditable to the Rhodians to let out their port dues, then it is not discreditable even to Hermacreon to rent them." Then these arguments are true, in this manner:—"Since there is a scar, there has been a wound." Then they are probable, in in this way:—"If there was a great deal of dust on his shoes, he must have come off a journey." But (in order that we may arrange this matter in certain definite divisions) every probable argument which is assumed for the purpose of discussion, is either a proof, or something credible, or something already determined; or something which may be compared with something else.

That is a proof which falls under some particular sense, and which indicates something which appears to have proceeded from it, which either existed previously, or was in the thing itself, or has ensued since, and, nevertheless, requires the evidence of testimony, and a more authoritative confirmation,—as blood, flight, dust, paleness, and other tokens like these. That is a credible statement which, without any witness being heard, is confirmed in the opinion of the hearer; in this way:—There is no one who does not wish his children to be free from injury, and happy. A case decided beforehand, is a matter approved of by the assent, or authority, or judgment of some person or persons. It is seen in three kinds of decision;—the religious one, the common one, the one depending on sanction. That is a religious one, which men on their oaths have decided in accordance with the laws. That is a common one, which all men have almost in a body approved of and adopted; in this manner:—"That all men should rise up on the appearance of their elders; That all men should pity suppliants." That depends on sanction, which, as it was a doubtful point what ought to be considered its character, men have established of their own authority; as, for instance, the conduct of the father of Gracchus, whom the Roman people made consul after his censorship, because he had done nothing in his censorship without the knowledge of his colleague.

But that is a decision admitting of comparisons, which in a multitude of different circumstances contains some principle which is alike in all. Its parts are three,—representation, collation, example. A Representation is a statement demonstrating some resemblance of bodies or natures; Collation is a statement comparing one thing with another, because of their likeness to one another; Example is that which confirms or invalidates a case by some authority, or by what has happened to some man, or under some especial circumstances. Instances of these things, and descriptions of them, will be given amid the precepts for oratory. And the source of all confirmations has been already explained as occasion offered, and has been demonstrated no less clearly than the nature of the case required. But how each separate statement, and each part of a statement, and every dispute ought to be handled,—whether we refer to verbal discussion or to writings,—and what arguments are suitable for each kind of discussion, we will mention, speaking separately of each kind, in the second book. At present we have only dropped hints about the numbers, and moods, and parts of arguing in an irregular and promiscuous manner; hereafter we will digest (making careful distinctions between and selections from each kind of cause) what is suitable for each kind of discussion, culling it out of this abundance which we have already displayed.

And indeed every sort of argument can be discovered from among these topics; and that, when discovered, it should be embellished, and separated in certain divisions, is very agreeable, and highly necessary, and is also a thing which has been greatly neglected by writers on this art. Wherefore at this present time it is desirable for us to speak of that sort of instruction, in order that perfection of arguing may be added to the discovery of proper arguments. And all this topic requires to be considered with great care and diligence, because there is not only great usefulness in this matter, but there is also extreme difficulty in giving precepts.

XXXI. All argumentation, therefore, is to be carried on either by induction, or by ratiocination. Induction is a manner of speaking which, by means of facts which are not doubtful, forces the assent of the person to whom it is addressed. By which assent it causes him even to approve of some points which are doubtful, on account of their resemblance to those things to which he has assented; as in the Aeschines of Socrates, Socrates shows that Aspasia used to argue with Xenophon's wife, and with Xenophon himself. "Tell me, I beg of you, O you wife of Xenophon, if your neighbour has better gold than you have, whether you prefer her gold or your own?" "Hers," says she. "Suppose she has dresses and other ornaments suited to women, of more value than those which you have, should you prefer your own or hers?" "Hers, to be sure," answered she. "Come, then," says Aspasia, "suppose she has a better husband than you have, should you then prefer your own husband or hers?" On this the woman blushed.

But Aspasia began a discourse with Xenophon himself. "I ask you, O Xenophon," says she, "if your neighbour has a better horse than yours is, whether you would prefer your own horse or his?" "His," says he. "Suppose he has a better farm than you have, which farm, I should like to know, would you prefer to possess?" "Beyond all doubt," says he, "that which is the best." "Suppose he has a better wife than you have, would you prefer his wife?" And on this Xenophon himself was silent. Then spake Aspasia,—"Since each of you avoids answering me that question alone which was the only one which I wished to have answered, I will tell you what each of you are thinking of; for both you, O woman, wish to have the best husband, and you, O Xenophon, most exceedingly desire to have the most excellent wife. Wherefore, unless you both so contrive matters that there shall not be on the whole earth a more excellent man or a more admirable woman, then in truth you will at all times desire above all things that which you think to be the best thing in the world, namely, that you, O Xenophon, may be the husband of the best possible wife; and you, O woman, that you may be married to the most excellent husband possible." After they had declared their assent to these far from doubtful propositions, it followed, on account of the resemblance of the cases, that if any one had separately asked them about some doubtful point, that also would have been admitted as certain, on account of the method employed in putting the question.

This was a method of instruction which Socrates used to a great extent, because he himself preferred bringing forward no arguments for the purpose of persuasion, but wished rather that the person with whom he was disputing should form his own conclusions from arguments with which he had furnished himself, and which he was unavoidably compelled to approve of from the grounds which he had already assented to.

XXXII. And with reference to this kind of persuasion, it appears to me desirable to lay down a rule, in the first place, that the argument which we bring forward by way of simile, should be such that it is impossible to avoid admitting it. For the premiss on account of which we intend to demand that that point which is doubtful shall be conceded to us, ought not to be doubtful itself. In the next place, we must take care that that point, for the sake of establishing which the induction is made, shall be really like those things which we have adduced before as matters admitting of no question. For it will be of no service to us that something has been already admitted, if that for the sake of which we were desirous to get that statement admitted be unlike it; so that the hearer may not understand what is the use of those original inductions, or to what result they tend.

For the man who sees that, if he is correct in giving his assent to the thing about which he is first asked, that thing also to which he does not agree must unavoidably be admitted by him, very often will not allow the examination to proceed any further, either by not answering at all, or by answering wrongly. Wherefore it is necessary that he should, by the method in which the inquiry is conducted, be led on without perceiving it, from the admissions which he has already made, to admit that which he is not inclined to admit, and at last he must either decline to give an answer, or he must admit what is wanted, or he must deny it. If the proposition be denied, then we must either show its resemblance to those things which have been already admitted or we must employ some other induction. If it be granted, then the argumentation may be brought to a close. If he keeps silence, then an answer must be extracted, or, since silence is very like a confession, it may be as well to bring the discussion to a close, taking the silence to be equivalent to an admission.

And so this kind of argumentation is threefold. The first part consists of one simile, or of several, the second, of that which we desire to have admitted, for the sake of which the similes have been employed, the third proceeds from the conclusion which either establishes the admissions which have been made or points out what may be established from it.

XXXIII But because it will not appear to some people to have been explained with sufficient clearness, unless we submit some instance taken from the civil class of causes, it seems desirable to employ some example of this sort, not because the rules to be laid down differ, or because it is expedient to employ such differently in this sort of discussion from what we should in ordinary discourse, but in order to satisfy the desire of those men, who, though they may have seen something in one place, are unable to recognise it in another unless it be proved. Therefore in this cause which is very notorious among the Greeks, that of Epaminondas, the general of the Thebans, who did not give up his army to the magistrate who succeeded him in due course of law, and when he himself had retained his army a few days contrary to law, he utterly defeated the Lacedaemonians, the accuser might employ an argumentation by means of induction, while defending the letter of the law in opposition to its spirit, in this way:—

"If, O judges, the framer of the law had added to his law what Epaminondas says that he intended, and had subjoined the exception 'except where any one has omitted to deliver up his army for the advantage of the republic,' would you have endured it? I think not. And if you yourselves, (though, such a proceeding is very far from your religious habits and from your wisdom,) for the sake of doing honour to this man, were to order the same exception to be subjoined to the law, would the Theban people endure that such a thing should be done? Beyond all question it would not endure it. Can it possibly then appear to you that that which would be scandalous if it were added to a law, should be proper to be done just as if it had been added to the law? I know your acuteness well; it cannot seem so to you, O judges. But if the intention of the framer of the law cannot be altered as to its expressions either by him or by you, then beware lest it should be a much more scandalous thing that that should be altered in fact, and by your decision, which cannot be altered in one single word."

And we seem now to have said enough for the present respecting induction. Next, let us consider the power and nature of ratiocination.

XXXIV. Ratiocination is a sort of speaking, eliciting something probable from the fact under consideration itself, which being explained and known of itself, confirms itself by its own power and principles.

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."

When the proposition has been proved in this manner, and when two parts of the ratiocination have proceeded, they say in the third part, that it is desirable to assume, from the mere intrinsic force of the proposition, what you wish to prove; in this way:—"But none of all those things is managed better than the entire world." In the fourth division they adduce besides another argument in proof of this assumption, in this manner:—"For both the rising and setting of the stars preserve some definite order, and their annual commutations do not only always take place in the same manner by some express necessity, but they are also adapted to the service of everything, and their daily and nightly changes have never injured anything in any particular from being altered capriciously." And all these things are a token that the nature of the world has been arranged by no ordinary wisdom. In the fifth division they bring forward that sort of statement, which either adduces that sort of fact alone which is compelled in every possible manner, in this way:—"The world, therefore, is governed on some settled plan;" or else, when it has briefly united both the proposition and the assumption, it adds this which is derived from both of them together, in this way:—"But if those things are managed better which are conducted on a settled plan, than those which are conducted without such settled plan; and if nothing whatever is managed better than the entire world; therefore it follows that the world is managed on a settled plan." And in this way they think that such argumentation has five divisions.

XXXV. But those who affirm that it has only three divisions, do not think that the argumentation ought to be conducted in any other way, but they find fault with this arrangement of the divisions. For they say that neither the proposition nor the assumption ought to be separated from their proofs; and that a proposition does not appear to be complete, nor an assumption perfect, which is not corroborated by proof. Therefore, they say that what those other men divide into two parts, proposition and proof, appears to them one part only, namely proposition. For if it be not proved, the proposition has no business to make part of the argumentation. In the same way they say that that which those other men call the assumption, and the proof of the assumption, appears to them to be assumption only. And the result is, that the whole argumentation being treated in the same way, appears to some susceptible of five divisions, and to others of only three; so that the difference does not so much affect the practice of speaking, as the principles on which the rules are to be laid down.

But to us that arrangement appears to be more convenient which divides it under five heads; and that is the one which all those who come from the school of Aristotle, or of Theophrastus, have chiefly followed. For as it is chiefly Socrates and the disciples of Socrates who have employed that former sort of argumentation which goes on induction, so this which is wrought up by ratiocination has been exceedingly practised by Aristotle, and the Peripatetics, and Theophrastus; and after them by those rhetoricians who are accounted the most elegant and the most skilful. And it seems desirable to explain why that arrangement is more approved of by us, that we may not appear to have adopted it capriciously; at the same time we must be brief in the explanation, that we may not appear to dwell on such subjects longer than the general manner of laying down rules requires.

XXXVI. If in any sort of argumentation it is sufficient to use a proposition by itself, and if it is not requisite to add proof to the proposition; but if in any sort of argumentation a proposition is of no power unless proof be added to it; then proof is something distinct from the proposition. For that which can be joined to a thing or separated from it, cannot possibly be the same thing with that to which it is joined or from which it is separated. But there is a certain kind of argumentation in which the proposition does not require confirmatory proof, and also another kind in which it is of no use at all without such proof, as we shall show. Proof, then, is a thing different from a proposition. And we will demonstrate that point which we have promised to show in this way:—The proposition which contains in itself something manifest, because it is unavoidable that that should be admitted by all men, has no necessity for our desiring to prove and corroborate it.

It is a sort of statement like this:—"If on the day on which that murder was committed at Rome, I was at Athens, I could not have been present at that murder." Because this is manifestly true, there is no need to adduce proof of it; wherefore, it is proper at once to assume the fact, in this way:—"But I was at Athens on that day." If this is not notorious, it requires proof; and when the proof is furnished the conclusion must follow:—"Therefore I could not have been present at the murder." There is, therefore, a certain kind of proposition which does not require proof. For why need one waste time in proving that there is a kind which does require proof; for that is easily visible to all men. And if this be the case, from this fact, and from that statement which we have established, it follows that proof is something distinct from a proposition. And if it is so, it is evidently false that argumentation is susceptible of only three divisions.

In the same manner it is plain that there is another sort of proof also which is distinct from assumption. For if in some sort of argumentation it is sufficient to use assumption, and if it is not requisite to add proof to the assumption; and if, again, in some sort of argumentation assumption is invalid unless proof be added to it; then proof is something separate and distinct from assumption. But there is a kind of argumentation in which assumption does not require proof; and a certain other kind in which it is of no use without proof; as we shall show. Proof, then, is a thing distinct from assumption. And we will demonstrate that which we have promised to in this manner.

That assumption which contains a truth evident to all men has no need of proof. That is an assumption of this sort:—"If it be desirable to be wise, it is proper to pay attention to philosophy." This proposition requires proof. For it is not self-evident. Nor is it notorious to all men, because many think that philosophy is of no service at all, and some think that it is even a disservice. A self-evident assumption is such as this:—"But it is desirable to be wise." And because this is of itself evident from the simple fact, and is at once perceived to be true, there is no need that it be proved. Wherefore, the argumentation may be at once terminated:—"Therefore it is proper to pay attention to philosophy." There is, therefore, a certain kind of assumption which does not stand in need of proof; for it is evident that is a kind which does. Therefore, it is false that argumentation is susceptible of only a threefold division.

XXXVII. And from these considerations that also is evident, that there is a certain kind of argumentation in which neither proposition nor assumption stands in need of proof, of this sort, that we may adduce something undoubted and concise, for the sake of example. "If wisdom is above all things to be desired, then folly is above all things to be avoided; but wisdom is to be desired above all things, therefore folly is above all things to be avoided." Here both the assumption and the proposition are self-evident, on which account neither of them stands in need of proof. And from all these facts it is manifest that proof is at times added, and at times is not added. From which it is palpable that proof is not contained in a proposition, nor in an assumption, but that each being placed in its proper place, has its own peculiar force fixed and belonging to itself. And if that is the case, then those men have made a convenient arrangement who have divided argumentation into five parts.

Are there five parts of that argumentation which is carried on by ratiocination? First of all, proposition, by which that topic is briefly explained from which all the force of the ratiocination ought to proceed. Then the proof of the proposition, by which that which has been briefly set forth being corroborated by reasons, is made more probable and evident. Then assumption, by which that is assumed which, proceeding from the proposition, has its effect on proving the case. Then the proof of the assumption, by which that which has been assumed is confirmed by reasons. Lastly, the summing up, in which that which results from the entire argumentation is briefly explained. So the argumentation which has the greatest number of divisions consists of these five parts.

The second sort of argumentation has four divisions; the third has three. Then there is one which has two; which, however, is a disputed point. And about each separate division it is possible that some people may think that there is room for a discussion.

XXXVIII. Let us then bring forward some examples of those matters which are agreed upon. And in favour of those which are doubtful, let us bring forward some reasons. Now the argumentation which is divided into five divisions is of this sort:—It is desirable, O judges, to refer all laws to the advantage of the republic, and to interpret them with reference to the general advantage, and according to the strict wording according to which they are drawn up. For our ancestors were men of such virtue and such wisdom, that when they were drawing up laws, they proposed to themselves no other object than the safety and advantage of the republic; for they were neither willing themselves to draw up any law which could be injurious; and if they had drawn up one of such a character, they were sure that it would be rejected when its tendency was perceived. For no one wishes to preserve the laws for the sake of the laws, but for the sake of the republic; because all men believe that the republic is best managed by means of laws. It is desirable, therefore, to interpret all written laws with reference to that cause for the sake of which it is desirable that the laws should be preserved. That is to say, since we are servants of the republic, let us interpret the laws with reference to the advantage and benefit of the republic. For as it is not right to think that anything results from medicine except what has reference to the advantage of the body, since it is for the sake of the body that the science of medicine has been established; so it is desirable to think that nothing proceeds from the laws except what is for the advantage of the republic, since it is for the sake of the republic that laws were instituted.

Therefore, while deciding on this point, cease to inquire about the strict letter of the law, and consider the law (as it is reasonable to do) with reference to the advantage of the republic. For what was more advantageous for the Thebans than for the Lacedaemonians to be put down? What object was Epaminondas, the Theban general, more bound to aim at than the victory of the Thebans? What had he any right to consider more precious or more dear to him, than the great glory then acquired by the Thebans, than such an illustrious and magnificent trophy? Surely, disregarding the letter of the law, it became him to consider the intention of the framer of the law. And this now has been sufficiently insisted on, namely, that no law has ever been drawn up by any one, that had not for its object the benefit of the commonwealth. He then thought that it was the very extremity of madness, not to interpret with reference to the advantage of the republic, that which had been framed for the sake of the safety of the republic. And it is right to interpret all laws with reference to the safety of the republic; and if he was a great instrument of the safety of the republic, certainly it is quite impossible that he by one and the same action should have consulted the general welfare, and yet should have violated the laws.

XXXIX. But argumentation consists of four parts, when we either advance a proposition, or claim an assumption without proof. That it is proper to do when either the proposition is understood by its own merits, or when the assumption is self-evident and is in need of no proof. If we pass over the proof of the proposition, the argumentation then consists of four parts, and is conducted in this manner:—"O judges, you who are deciding on your oaths, in accordance with the law, ought to obey the laws; but you cannot obey the laws unless you follow that which is written in the law. For what more certain evidence of his intention could the framer of a law leave behind him, than that which he himself wrote with great care and diligence? But if there were no written documents, then we should be very anxious for them, in order that the intention of the framer of the law might be ascertained; nor should we permit Epaminondas, not even if he were beyond the power of this tribunal, to interpret to us the meaning of the law; much less will we now permit him, when, the law is at hand, to interpret the intention of the lawgiver, not from that which is most clearly written, but from that which is convenient for his own cause. But if you, O judges, are bound to obey the laws, and if you are unable to do so unless you follow what is written in the law; what can hinder your deciding that he has acted contrary to the laws?"

But if we pass over the proof of the assumption, again the argumentation will be arranged under four heads, in this manner:—"When men have repeatedly deceived us, having pledged their faith to us, we ought not to give credit to anything that they say for if we receive any injury; in consequence of their perfidy, there will be no one except ourselves whom we shall have any right to accuse. And in the first place, it is inconvenient to be deceived, in the next place, it is foolish, thirdly, it is disgraceful. But the Carthaginians have before this deceived us over and over again. It is therefore the greatest insanity to rest any hopes on their good faith, when you have been so often deceived by their treachery."

When the proof both of the proposition and of the assumption is passed over, the argumentation becomes threefold only, in this way—"We must either live in fear of the Carthaginians if we leave them with their power undiminished, or we must destroy their city. And certainly it is not desirable to live in fear of them. The only remaining alternative then is to destroy their city."

XL But some people think that it is both possible and advisable at times to pass over the summing up altogether, when it is quite evident what is effected by ratiocination. And then if that be done they consider that the argumentation is limited to two divisions, in this way—"If she has had a child she is not a virgin. But she has had a child." In this case they say it is quite sufficient to state the proposition and assumption, since it is quite plain that the matter which is here stated is such as does not stand in need of summing up. But to us it seems that all ratiocination ought to be terminated in proper form and that that defect which offends them is above all things to be avoided namely, that of introducing what is self evident into the summing up.

But this will be possible to be effected if we come to a right understanding of the different kinds of summing up. For we shall either sum up in such a way as to unite together the proposition and the assumption, in this way—"But if it is right for all laws to be referred to the general advantage of the republic, and if this man ensured the safety of the republic, undoubtedly he cannot by one and the same action have consulted the general safety and yet have violated the laws,"—or thus, in order that the opinion we advocate may be established by arguments drawn from contraries, in this manner—"It is then the very greatest madness to build hopes on the good faith of those men by whose treachery you have been so repeatedly deceived,"—or so that that inference alone be drawn which is already announced, in this manner—"Let us then destroy their city,"—or so that the conclusion which is desired must necessarily follow from the assertion which has been established, in this way—"If she has had a child, she has laid with a man. But she has had a child." This then is established. "Therefore she has lain with a man." If you are unwilling to draw this inference, and prefer inferring what follows, "Therefore she has committed incest," you will have terminated your argumentation but you will have missed an evident and natural summing up.