VI. "Well then, what is the point?" said he; "I should very much like to know what it is that you disagree with."
"Let me begin," I replied, "with the subject of Natural Philosophy, which is Epicurus’ particular boast. Here, in the first place, he is entirely second-hand. His doctrines are those of Democritus, with a very few modifications. And as for the latter, where he attempts to improve upon his original, in my opinion he only succeeds in making things worse. Democritus believes in certain things which he terms ‘atoms,’ that is, bodies so solid as to be indivisible, moving about in a vacuum of infinite extent, which has neither top, bottom nor middle, neither center nor circumference. The motion of these atoms is such that they collide and so cohere together; and from this process result the whole of the things that exist and that we see. Moreover, this movement of the atoms must not be conceived as starting from a beginning, but as having gone on from all eternity. Epicurus for his part, where he follows Democritus, does not generally blunder. Still, there is a great deal in each of them with which I do not agree, and especially this: in the study of Nature there are two questions to be asked, first, what is the matter out of which each thing is made, second, what is the force by which it is made; now Democritus and Epicurus have discussed the question of matter, but they have not considered the question of force or the effective cause. But this is a defect shared by both; I now come to the lapses peculiar to Epicurus. He believes that these same indivisible solid bodies are borne by their own weight perpendicularly downward, which he holds is the natural motion of all bodies; but thereupon this clever fellow, being met with the difficulty that if they all traveled downwards in a straight line, and, as I said, perpendicularly, no one atom would ever be able to overtake any other atom, accordingly introduced an idea of his own invention: he said that the atom makes a very tiny swerve—the smallest divergence possible; and thus produces entanglements and combinations and cohesion of atoms with atoms, which result in the creation of the world, and all its parts, and of all that in them is. Now not only is this whole affair a piece of childish fancy, but it does not even achieve the result that its author desires. The swerving is itself an arbitrary fiction; for Epicurus says the atoms swerve without cause—yet this is the capital offense in a natural philosopher, to speak of something taking place uncaused. Then also he gratuitously deprives the atoms of what he himself declared to be the natural motion of all heavy bodies, namely, movement in a straight line downwards, and yet he does not attain the object for the sake of which this fiction was devised. For, if all the atoms swerve, none will ever come to cohere together; or if some swerve while others travel in a straight line, but their own natural tendency, in the first place this will be tantamount to assigning to the atoms their different spheres of action, some to travel straight and some sideways; while secondly (and this is a weak point with Democritus also) this riotous hurly-burly of atoms could not possibly result in the ordered beauty of the world we know. It is also unworthy of a natural philosopher to deny the infinite divisibility of matter; an error that assuredly Epicurus would have avoided, if he had been willing to let his friend Polyænus teach him geometry instead of making Polyænus himself unlearn it. Democritus, being an educated man and well versed in geometry, thinks the sun is of vast size; Epicurus considers it perhaps a foot in diameter, for he pronounces it to be exactly as large as it appears, or a little larger or smaller. Thus where Epicurus alters the doctrines of Democritus, he alters them for the worse; while for those ideas which he adopts, the credit belongs entirely to Democritus—the atoms, the void, the images [2], or as they call them, eidola, whose impact is the cause not only of vision but also of thought; the very conception of infinite space, apeiria as they term it, is entirely derived from Democritus; and again the countless numbers of worlds that come into existence and pass out of existence every day. For my own part I reject these doctrines altogether; but still I could wish that Democritus, whom every one else applauds, had not been vilified by Epicurus who took him as his sole guide.
VII. "Turn next to the second division of philosophy, the department of Method and of Dialectic, which its termed Logik?. Of the whole armor of Logic your founder, as it seems to me, is absolutely destitute. He does away with Definition; he has no doctrine of Division or Partition [3]; he gives no rules for Deduction or Syllogistic Inference, and imparts no method for resolving Dilemmas or for detecting Fallacies of Equivocation. The Criteria of reality he places in sensation; once let the senses accept as true something that is false, and every possible criterion of truth and falsehood seems to him to be immediately destroyed...[4]... He lays the very greatest stress upon that which, as he declares, Nature herself decrees and sanctions, that is: the feelings of pleasure and pain. These he maintains lie at the root of every act of choice and of avoidance. This is the doctrine of Aristippus, and it is upheld more cogently and more frankly by the Cyrenaics; but nevertheless it is in my judgment a doctrine in the last degree unworthy of the dignity of man. Nature, in my opinion at all events, has created and endowed us for higher ends. I may possibly be mistaken; but I am absolutely convinced that the Torquatus who first won that surname did not wrest the famous necklet from his foe in the hope of getting from it any physical enjoyment, nor did he fight the battle of the Veseris against the Latins in his third consulship for the sake of pleasure. Indeed in sentencing his son to be beheaded, it would seem that he actually deprived himself of a great deal of pleasure; for he sacrificed his natural instincts of paternal affection to the claims state and of his military office.
"Then, think of the Titus Torquatus who was consul with Gnaeus Octavius; when he dealt so sternly with the son who had passed out of his paternal control through his adoption by Decius Silanus—when he summoned him into his presence to answer to the charge preferred against him by a deputation from Macedonia, of accepting bribes while praetor in that province—when, after hearing both sides of the case, he gave judgment that he found his son guilty of having conducted himself in office in a manner unworthy of his ancestry, and banished him for ever from his sight—do you think that he had any regard for his own pleasure? But I pass over the dangers, the toils, the actual pain that all good men endure for country and for friends, not only not seeking pleasure, but actually renouncing pleasures altogether, and preferring to undergo every sort of pain rather than be false to any portion of their duty. Let us turn to matters seemingly less important, but equally conclusive. What actual pleasure do you, Torquatus, or does Triarius here, derive from literature, from history and learning, from turning the pages of the poets and committing vast quantities of verse to memory? Do not tell me that these pursuits are in themselves a pleasure to you, and that so were the deeds I mentioned to the Torquati. That line of defense was never taken by Epicurus or Metrodorus, nor by any one of them if he possessed any intelligence or had mastered the doctrines of your school. Again, as to the questions often asked, why so many men are Epicureans, though it is not the only reason, the thing that most attracts the crowd is the belief that Epicurus declares right conduct and moral worth to be intrinsically and of themselves delightful, which means productive of pleasure. These worthy people do not realize that, if this is true, it upsets the theory altogether. If it were admitted that goodness is spontaneously and intrinsically pleasant, even without any reference to bodily feeling, then virtue would be desirable for its own sake, and so also would knowledge; but this Epicurus by no means allows.
"These then," said I, "are the doctrines of Epicurus that I cannot accept. For the rest, I could desire that he himself had been better equipped with learning (since even you must recognize that he is deficient in the liberal culture which confers on its possessor the title of an educated man) or at all events that he had not deterred others from study. Although I am aware that he has not succeeded in deterring you."