But others declared that they would never be the first to speak in behalf of this evidentness; but they thought that a reply ought to be made to those arguments which were advanced against it, to prevent any one being deceived by them. There are also many men who do not disapprove of the definitions of the evident things themselves, and who think the subject one worthy of being inquired into, and the men worthy of being argued with.
But Philo, while he raises some new questions, because he was scarcely able to withstand the things which were said against the obstinacy of the Academicians, speaks falsely, without disguise, as he was reproached for doing by the elder Catulus; and also, as Antiochus told him, falls into the very trap of which he was afraid. For as he asserted that there was nothing which could be comprehended, (for that is what we conceive to be meant by ἀκατάληπτος,) if that was, as Zeno defined it, such a perception, (for we have already spent time [pg 032] enough yesterday in beating out a word for φαντασία,) then a perception was extracted and produced out of that from which it originated, such as could be produced from that from which it did not originate. And we say that this matter was most excellently defined by Zeno; for how can anything be comprehended, so that you may feel absolutely sure that it has been perceived and known, which is of such a character that it is even possible that it may be false? Now when Philo upsets and denies this, he takes away also all distinction between what is known and unknown; from which it follows that nothing can be comprehended; and so, without intending it, he is brought back to the point he least intended. Wherefore, all this discourse against the Academy is undertaken by us in order that we may retain that definition which Philo wished to overturn; and unless we succeed in that, we grant that nothing can be perceived.
VII. Let us begin then with the senses—the judgments of which are so clear and certain, that if an option were given to our nature, and if some god were to ask of it whether it is content with its own unimpaired and uncorrupted senses, or whether it desires something better, I do not see what more it could ask for. Nor while speaking on this topic need you wait while I reply to the illustration drawn from a bent oar, or the neck of a dove; for I am not a man to say that everything which seems is exactly of that character of which it seems to be. Epicurus may deal with this idea, and with many others; but in my opinion there is the very greatest truth in the senses, if they are in sound and healthy order, and if everything is removed which could impede or hinder them. Therefore we often wish the light to be changed, or the situation of those things which we are looking at; and we either narrow or enlarge distances; and we do many things until our sight causes us to feel confidence in our judgment. And the same thing takes place with respect to sounds, and smell, and taste, so that there is not one of us who, in each one of his senses, requires a more acute judgment as to each sort of thing.
But when practice and skill are added, so that one's eyes are charmed by a picture, and one's ears by songs, who is there who can fail to see what great power there is in the senses? How many things do painters see in shadows and in projections which we do not see? How many beauties which [pg 033] escape us in music are perceived by those who are practised in that kind of accomplishment? men who, at the first note of the flute-player, say,—That is the Antiope, or the Andromache, when we have not even a suspicion of it. There is no need for me to speak of the faculties of taste or smell; organs in which there is a degree of intelligence, however faulty it may be. Why should I speak of touch, and of that kind of touch which philosophers call the inner one, I mean the touch of pleasure or pain? in which alone the Cyrenaics think that there is any judgment of the truth, because pleasure or pain are felt. Can any one then say that there is no difference between a man who is in pain and a man who is in pleasure? or can any one think that a man who entertains this opinion is not flagrantly mad?
But such as those things are which we say are perceived by the senses, such also are those things which are said to be perceived, not by the senses themselves, but by the senses after a fashion; as these things—that is white, this is sweet, that is tuneful, this is fragrant, that is rough. We have these ideas already comprehended by the mind, not by the senses. Again, this is a house, that is a dog. Then the rest of the series follows, connecting the more important links; such as these, which embrace, as it were, the full comprehension of things;—If he is a man, he is a mortal animal partaking of reason:—from which class of arguments the notions of things are impressed upon us, without which nothing can be understood, nor inquired into, nor discussed. But if those notions were false, (for you seemed to me to translate ἔννοιαι notions,) if, I say, they were false, or impressed, or perceptions of such a kind as not to be able to be distinguished from false ones; then I should like to know how we were to use them? and how we were to see what was consistent with each thing and what was inconsistent with it? Certainly no room at all is here left for memory, which of all qualities is the one that most completely contains, not only philosophy, but the whole practice of life, and all the arts. For what memory can there be of what is false? or what does any one remember which he does not comprehend and hold in his mind? And what art can there be except that which consists not of one, nor of two, but of many perceptions of the mind? and if you take these away, how are you to distinguish the artist from the ignorant man? For we must not [pg 034] say at random that this man is an artist, and deny that that man is; but we must only do so when we see that the one retains the things which he has perceived and comprehended, and that the other does not. And as some arts are of that kind that one can only see the fact in one's mind, others such that one can design and effect something, how can a geometrician perceive those things which have no existence, or which cannot be distinguished from what is false? or how can he who plays on the lyre complete his rhythm, and finish verses? And the same will be the case with respect to similar arts, whose whole work consists in acting and in effecting something. For what is there that can be effected by art, unless the man who exercises the art has many perceptions?
VIII. And most especially does the knowledge of virtues confirm the assertion that many things can be perceived and comprehended. And in those things alone do we say that science exists; which we consider to be not a mere comprehension of things, but one that is firm and unchangeable; and we consider it also to be wisdom, the art of living which, by itself, derives consistency from itself. But if that consistency has no perception or knowledge about it, then I ask whence it has originated and how? I ask also, why that good man who has made up his mind to endure every kind of torture, to be torn by intolerable pain, rather than to betray his duty or his faith, has imposed on himself such bitter conditions, when he has nothing comprehended, perceived, known, or established, to lead him to think that he is bound to do so? It cannot, then, by any possibility be the case that any one should estimate equity and good faith so highly as to shrink from no punishment for the sake of preserving them, unless he has assented to those facts which cannot be false. But as to wisdom itself, if it be ignorant of its own character, and if it does not know whether it be wisdom or not, in the first place, how is it to obtain its name of wisdom? Secondly, how will it venture to undertake any exploit, or to perform it with confidence, when it has nothing certain to follow? But when it doubts what is the chief and highest good, being ignorant to what everything is referred, how can it be wisdom?
And that also is manifest, that it is necessary that there should be laid down in the first place a principle which wisdom may follow when it begins to act; and that principle must be [pg 035] adapted to nature. For otherwise, the desire, (for that is how I translate ὁρμὴ,) by which we are impelled to act, and by which we desire what has been seen, cannot be set in motion. But that which sets anything in motion must first be seen and trusted, which cannot be the case if that which is seen cannot be distinguished from what is false. But how can the mind be moved to desire anything, if it cannot be perceived whether that which is seen is adapted to nature or inconsistent with it?
And again, if it does not occur to a man's mind what his duty is, he will actually never do anything, he will never be excited to any action, he will never be moved. But if he ever is about to do anything, then it is necessary that that which occurs to him must appear to him to be true. What! But if those things are true, is the whole of reason, which is, as it were, the light and illumination of life, put an end to? And still will you persist in that wrong-headedness? For it is reason which has brought men the beginning of inquiry, which has perfected virtue, after reason herself had been confirmed by inquiry. But inquiry is the desire of knowledge; and the end of inquiry is discovery. But no one can discover what is false; nor can those things which continue uncertain be discovered. But when those things which have, as it were, been under a veil, are laid open, then they are said to be discovered; and so reason contains the beginning of inquiry, and the end of perceiving and comprehending. Therefore the conclusion of an argument, which in Greek is called ἀπόδειξις, is thus defined:—Reason, which leads one from facts which are perceived, to that which was not perceived.
IX. But if all things which are seen were of that sort that those men say they are, so that they either could possibly be false, or that no discernment could distinguish whether they were false or not, then how could we say that any one had either formed any conclusion, or discovered anything? Or what trust could be placed in an argument when brought to a conclusion? And what end will philosophy itself have, which is bound to proceed according to reason? And what will become of wisdom? which ought not to doubt about its own character, nor about its decrees, which philosophers call δόγματα; none of which can be betrayed without wickedness. For when a decree is betrayed, the law of truth [pg 036] and right is betrayed too. From which fault betrayals of friendships and of republics often originate. It cannot, therefore be doubted, that no rule of wisdom can possibly be false; and it ought not to be enough for the wise man that it is not false, but it ought also to be steady, durable, and lasting; such as no arguments can shake. But none can either be, or appear such, according to the principle of those men who deny that those perceptions in which all rules originate are in any respect different from false ones; and from this assertion arose the demand which was repeated by Hortensius, that you would at least allow that the fact that nothing can be perceived has been perceived by the wise man. But when Antipater made the same demand, and argued that it was unavoidable that the man who affirmed that nothing could be perceived should nevertheless admit that this one thing could be perceived,—namely, that nothing else could,—Carneades resisted him with great shrewdness. For he said that this admission was so far from being consistent with the doctrine asserted, that it was above all others incompatible with it: for that a man who denied that there was anything which could be perceived excepted nothing. And so it followed of necessity, that even that very thing which was not excepted, could not be comprehended and perceived in any possible manner.
Antiochus, on this topic, seems to press his antagonist more closely. For since the Academicians adopted that rule, (for you understand that I am translating by this word what they call δόγμα,) that nothing can be perceived, he urged that they ought not to waver in their rule as in other matters, especially as the whole of their philosophy consisted in it: for that the fixing of what is true and false, known and unknown, is the supreme law of all philosophy. And since they adopted this principle, and wished to teach what ought to be received by each individual, and what rejected, undoubtedly, said he, they ought to perceive this very thing from which the whole judgment of what is true and false arises. He urged, in short, that there were these two principal objects in philosophy, the knowledge of truth, and the attainment of the chief good; and that a man could not be wise who was ignorant of either the beginning of knowledge, or of the end of desire, so as not to know either where to start from, or [pg 037] whither to seek to arrive at. But that to feel in doubt on these points, and not to have such confidence respecting them as to be unable to be shaken, is utterly incompatible with wisdom.