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Definitions and Clarifications

Epicurus considered many commonly-held beliefs to be incorrect, and when the Epicureans spoke about these issues it should be assumed that they were using these terms in the way Epicurus taught. Among these specialized definitions and viewpoints are the following:

"Gods" - Epicurus held that "gods" are not supernatural, omniscient, omnipotent, or naturally immortal. While it is clear that Epicurus held that life exists throughout the universe, it is unclear from remaining texts whether the Epicurean gods existed physically or were held to exist due to human conceptual construction of them. Regardless of whether such beings truly exist in the intermundia, Epicurus clearly held that it is essential to human happiness to have a proper conception of divinity as uninvolved in human affairs but symbolic of blessed living.

"Pleasure" - Epicurus held the term "pleasure" to include agreeable xperiences of all kinds, including both (1) active stimulatiions of the senses, and (2) all healthy normal mental and bodily functioning. Epicurus held that there are only two feelings, pleasure and pain, and therefore all experience of life which are not painful are considered pleasurable. When Epicureans refer to "Pleasure" as the guide of life or "the highest good," they should be understood to refer to Pleasure in this two-fold sense.

"Absence of Pain" - Epicurus held that because there are only two feelings, "absence of pain" is synymous, and means exactly the same thing as, the term "pleasure." Use of the term "absence of pain" should be read to mean nothing more or less than the term "pleasure."

"Virtue" - Epicurus denied that virtue is absolute or an end in itself. Considered as tools for the purpose of living happily, however, Epicurus considered the practice of virtue to be inseparable from a happy life.

"Death Is Nothing To Us" - Epicurus held that human consciousness (the soul or spirit) dissipates and ceases to exist when the body dies. As we no longer exist after death, nothing is of concern to us after death, because we no longer exist to experience anything. This "death is nothing to us." This does not mean that the time or manner of death is of no significance to us, because life is desirable, and a painful death is undesirable. After we die, however, we are no longer able to have any concerns at all.

"Nothing Exists Except Atoms And Void" - Epicurus did not reduce all reality to atoms and void in the way that Democritus apparently did. Epicurus considered as "real" anything which affects us, including dreams, and certainly including the properties and qualities of bodies which are made up of combinations of atoms and void. As Professor David Sedley states, "Almost uniquely among Greek philosophers he arrived at what is nowadays the unreflective assumption of almost anyone with a smattering of science, that there are truths at the microscopic level of elementary particles, and further very different truths at the phenomenal level; that the former must be capable of explaining the latter; but that neither level of description has a monopoly of truth. (The truth that sugar is sweet is not straightforwardly reducible to the truth that it has such and such a molecular structure, even though the latter truth may be required in order to explain the former)."

Atomic Physics - The Way To Understand the Nature of The Universe As A Whole

Nothing comes from nothing or goes to nothing.

Nothing From Nothing:

Epicurus - Letter to Herodotus: [38] ... Having made these points clear, we must now consider things imperceptible to the senses. First of all, that nothing is created out of that which does not exist: for if it were, everything would be created out of everything with no need of seeds.

Lucretius Book One:

[146] This terror then, this darkness of the mind, must needs be scattered not by the rays of the sun and the gleaming shafts of day, but by the outer view and the inner law of nature; whose first rule shall take its start for us from this, that nothing is ever begotten of nothing by divine will. Fear forsooth so constrains all mortal men, because they behold many things come to pass on earth and in the sky, the cause of whose working they can by no means see, and think that a divine power brings them about. Therefore, when we have seen that nothing can be created out of nothing, then more rightly after that shall we discern that for which we search, both whence each thing can be created, and in what way all things come to be without the aid of gods.

[159] For if things came to being from nothing, every kind might be born from all things, nought would need a seed. First men might arise from the sea, and from the land the race of scaly creatures, and birds burst forth from the sky; cattle and other herds, and all the tribe of wild beasts, with no fixed law of birth, would haunt tilth and desert. Nor would the same fruits stay constant to the trees, but all would change: all trees might avail to bear all fruits. Why, were there not bodies to bring each thing to birth, how could things have a fixed unchanging mother? But as it is, since all things are produced from fixed seeds, each thing is born and comes forth into the coasts of light, out of that which has in it the substance and first-bodies of each; and �tis for this cause that all things cannot be begotten of all, because in fixed things there dwells a power set apart.

[174] Or again, why do we see the roses in spring, and the corn in summer�s heat, and the vines bursting out when autumn summons them, if it be not that when, in their own time, the fixed seeds of things have flowed together, then is disclosed each thing that comes to birth, while the season is at hand, and the lively earth in safety brings forth the fragile things into the coasts of light? But if they sprang from nothing, suddenly would they arise at uncertain intervals and in hostile times of year, since indeed there would be no first-beginnings which might be kept apart from creative union at an ill-starred season.

[184] Nay more, there would be no need for lapse of time for the increase of things upon the meeting of the seed, if they could grow from nothing. For little children would grow suddenly to youths, and at once trees would come forth, leaping from the earth. But of this it is well seen that nothing comes to pass, since all things grow slowly, as is natural, from a fixed seed, and as they grow preserve their kind: so that you can know that each thing grows great, and is fostered out of its own substance.

[192] There is this too, that without fixed rain-showers in the year the earth could not put forth its gladdening produce, nor again held apart from food could the nature of living things renew its kind or preserve its life; so that rather you may think that many bodies are common to many things, as we see letters are to words, than that without first-beginnings anything can come to being.

[199] Once more, why could not nature produce men so large that on their feet they might wade through the waters of ocean or rend asunder mighty mountains with their hands, or live to overpass many generations of living men, if it be not because fixed substance has been appointed for the begetting of things, from which it is ordained what can arise? Therefore, we must confess that nothing can be brought to being out of nothing, inasmuch as it needs a seed for things, from which each may be produced and brought forth into the gentle breezes of the air.

[208] Lastly, inasmuch as we see that tilled grounds are better than the untilled, and when worked by hands yield better produce, we must know that there are in the earth first-beginnings of things, which we call forth to birth by turning the teeming sods with the ploughshare and drilling the soil of the earth. But if there were none such, you would see all things without toil of ours of their own will come to be far better.

Nothing To Nothing:

1. Epicurus - Letter to Herodotus: [39] And again, if that which disappears were destroyed into that which did not exist, all things would have perished, since that into which they were dissolved would not exist.

2. Lucretius Book One:

1. [215] Then follows this, that nature breaks up each thing again into its own first-bodies, nor does she destroy ought into nothing. For if anything were mortal in all its parts, each thing would on a sudden be snatched from our eyes, and pass away. For there would be no need of any force, such as might cause disunion in its parts and unloose its fastenings. But as it is, because all things are put together of everlasting seeds, until some force has met them to batter things asunder with its blow, or to make its way inward through the empty voids and break things up, nature suffers not the destruction of anything to be seen.

2. [225] Moreover, if time utterly destroys whatsoever through age it takes from sight, and devours all its substance, how is it that Venus brings back the race of living things after their kind into the light of life, or when she has, how does earth, the quaint artificer, nurse and increase them, furnishing food for them after their kind? how is it that its native springs and the rivers from without, coming from afar, keep the sea full? how is it that the sky feeds the stars? For infinite time and the days that are gone by must needs have devoured all things that are of mortal body. But if in all that while, in the ages that are gone by, those things have existed, of which this sum of things consists and is replenished, assuredly they are blessed with an immortal nature; all things cannot then be turned to nought.

3. [238] And again, the same force and cause would destroy all things alike, unless an eternal substance held them together, part with part interwoven closely or loosely by its fastenings. For in truth a touch would be cause enough of death, seeing that none of these things would be of everlasting body, whose texture any kind of force would be bound to break asunder. But as it is, because the fastenings of the first-elements are variously put together, and their substance is everlasting, things endure with body unharmed, until there meets them a force proved strong enough to overcome the texture of each. No single thing then passes back to nothing, but all by dissolution pass back into the first-bodies of matter.

4. [250] Lastly, the rains pass away, when the sky, our father, has cast them headlong into the lap of earth, our mother; but the bright crops spring up, and the branches grow green upon the trees, the trees too grow and are laden with fruit; by them next our race and the race of beasts is nourished, through them we see glad towns alive with children, and leafy woods on every side ring with the young birds� cry; through them the cattle wearied with fatness lay their limbs to rest over the glad pastures, and the white milky stream trickles from their swollen udders; through them a new brood with tottering legs sports wanton among the soft grass, their baby hearts thrilling with the pure milk. Not utterly then perish all things that are seen, since nature renews one thing from out another, nor suffers anything to be begotten, unless she be requited by another�s death.

Nothing except atoms and void are by nature eternal and unchanging.

The atoms are constantly in motion, but not so fast that we cannot comprehend the nature of the universe, knowledge, and how to live.

Diogenes of Oinoanda Fragment 5:�Now Aristotle and those who hold the same Peripatetic views as Aristotle say that nothing is scientifically knowable, because things are continually in flux and, on account of the rapidity of the flux, evade our apprehension. We on the other hand acknowledge their flux, but not its being so rapid that the nature of each thing [is] at no time apprehensible by sense-perception. And indeed [in no way would the upholders of] the view under discussion have been able to say (and this is just what they do [maintain] that [at one time] this is [white] and this black, while [at another time] neither this is [white nor] that black, [if] they had not had [previous] knowledge of the nature of both white and black.

Bodies are no less real to us than atoms, and so Epicurus rejects atomic reductionism.

David Sedley, Epicurus' Refutation of Determinism, p 33: In confirmation of this, we can return to the close and apparently conscious parallelism between Epicurus' treatments of determinism and scepticism. The sceptics refuted in Lucretius IV must be, or prominently include, those fourth-century Detilocriteans like Metrodorus of Chios, Anaxarchus, and even Epicurus' own reviled teacher Nausiphanes, who had played up the sceptical side of Democritus' thought, and against whom Epicurus was eager to marshal the positive empiricist arguments which Democritus had also bequeathed.39 This scepticism was the result of what I shall call reductionist atomism. Because phenomenal objects and properties seemed to reduce to mere configurations of atoms and void, Democritus was inclined to suppose that the atoms and void were real while the phenomenal objects and properties were no more than arbitrary constructions placed upon them by human cognitive organs. In his more extreme moods Democritus was even inclined to doubt the power of human judgment, since judgment was itself no more than a realignment of atoms in the mind XXX. Epicurus' response to this is perhaps the least appreciated aspect of his thought. It was to reject reductionist atomism. Almost uniquely among Greek philosophers he arrived at what is nowadays the unreflective assumption of almost anyone with a smattering of science, that there are truths at the microscopic level of elementary particles, and further very different truths at the phenomenal level; that the former must be capable of explaining the latter; but that neither level of description has a monopoly of truth. (The truth that sugar is sweet is not straightforwardly reducible to the truth that it has such and such a molecular structure, even though the latter truth may be required in order to explain the former). By establishing that cognitive scepticism, the direct outcome of reductionist atomism, is self-refuting and untenable in practice, Epicurus justifies his non-reductionist alternative, according to which sensations are true and there are therefore bona fide truths at the phenomenal level accessible through them. The same will apply to the XXX, which Epicurus also held to be veridical. Pleasure, for example, is a direct datum of experience. It is commonly assumed that Epicurus must have equated pleasure with such and such a kind of movement of soul atoms; but although he will have taken it to have some explanation at the atomic level, I know of no evidence that he, any more than most moral philosophers or psychologists, would have held that an adequate analysis of it could be found at that level. Physics are strikingly absent from Epicurus' ethical writings, and it is curious that interpreters are so much readier to import them there than they are when it comes to the moral philosophy of Plato or Aristotle.

The swerve of the atom frees us from determinism.

Lucretius Book Two: Lucretius Book Two: [216] Herein I would fain that you should learn this too, that when first-bodies are being carried downwards straight through the void by their own weight, at times quite undetermined and at undetermined spots they push a little from their path: yet only just so much as you could call a change of trend. But if they were not used to swerve, all things would fall downwards through the deep void like drops of rain, nor could collision come to be, nor a blow brought to pass for the first-beginnings: so nature would never have brought aught to being.

[225] But if perchance any one believes that heavier bodies, because they are carried more quickly straight through the void, can fall from above on the lighter, and so bring about the blows which can give creative motions, he wanders far away from true reason. For all things that fall through the water and thin air, these things must needs quicken their fall in proportion to their weights, just because the body of water and the thin nature of air cannot check each thing equally, but give place more quickly when overcome by heavier bodies. But, on the other hand, the empty void cannot on any side, at any time, support anything, but rather, as its own nature desires, it continues to give place; wherefore all things must needs be borne on through the calm void, moving at equal rate with unequal weights. The heavier will not then ever be able to fall on the lighter from above, nor of themselves bring about the blows, which make diverse the movements, by which nature carries things on. Wherefore, again and again, it must needs be that the first-bodies swerve a little; yet not more than the very least, lest we seem to be imagining a sideways movement, and the truth refute it. For this we see plain and evident, that bodies, as far as in them lies, cannot travel sideways, since they fall headlong from above, as far as you can descry. But that nothing at all swerves from the straight direction of its path, what sense is there which can descry? [251] Once again, if every motion is always linked on, and the new always arises from the old in order determined, nor by swerving do the first-beginnings make a certain start of movement to break through the decrees of fate, so that cause may not follow cause from infinite time; whence comes this free will for living things all over the earth, whence, I ask, is it wrested from fate, this will whereby we move forward, where pleasure leads each one of us, and swerve likewise in our motions neither at determined times nor in a determined direction of place, but just where our mind has carried us? For without doubt it is his own will which gives to each one a start for this movement, and from the will the motions pass flooding through the limbs.

[263] Do you not see too how, when the barriers are flung open, yet for an instant of time the eager might of the horses cannot burst out so suddenly as their mind itself desires? For the whole store of matter throughout the whole body must be roused to movement, that then aroused through every limb it may strain and follow the eager longing of the mind; so that you see a start of movement is brought to pass from the heart, and comes forth first of all from the will of the mind, and then afterwards is spread through all the body and limbs.

[272] Nor is it the same as when we move forward impelled by a blow from the strong might and strong constraint of another. For then it is clear to see that all the matter of the body moves and is hurried on against our will, until the will has reined it back throughout the limbs. Do you not then now see that, albeit a force outside pushes many men and constrains them often to go forward against their will and to be hurried away headlong, yet there is something in our breast, which can fight against it and withstand it? And at its bidding too the store of matter is constrained now and then to turn throughout the limbs and members, and, when pushed forward, is reined back and comes to rest again.

[284] Wherefore in the seeds too you must needs allow likewise that there is another cause of motion besides blows and weights, whence comes this power born in us, since we see that nothing can come to pass from nothing. For weight prevents all things coming to pass by blows, as by some force without. But that the very mind feels not some necessity within in doing all things, and is not constrained like a conquered thing to bear and suffer, this is brought about by the tiny swerve of the first-beginnings in no determined direction of place and at no determined time.

The universe is eternal, boundless, and life-filled.

Lucretius Book Two:

[2:1048] First of all, we find that in every direction everywhere, and on either side, above and below, through all the universe, there is no limit, as I have shown, and indeed the truth cries out for itself and the nature of the deep shines clear. Now in no way must we think it likely, since towards every side is infinite empty space, and seeds in unnumbered numbers in the deep universe fly about in many ways driven on in everlasting motion, that this one world and sky was brought to birth, but that beyond it all those bodies of matter do naught; above all, since this world was so made by nature, as the seeds of things themselves of their own accord, jostling from time to time, were driven together in many ways, rashly, idly, and in vain, and at last those united, which, suddenly cast together, might become ever and anon the beginnings of great things, of earth and sea and sky, and the race of living things. Wherefore, again and again, you must needs confess that there are here and there other gatherings of matter, such as is this, which the ether holds in its greedy grip.

[2:1067] Moreover, when there is much matter ready to hand, when space is there, and no thing, no cause delays, things must, we may be sure, be carried on and completed. As it is, if there is so great a store of seeds as the whole life of living things could not number, and if the same force and nature abides which could throw together the seeds of things, each into their place in like manner as they are thrown together here, it must needs be that you confess that there are other worlds in other regions, and diverse races of men and tribes of wild beasts.

[2:1077] This there is too that in the universe there is nothing single, nothing born unique and growing unique and alone, but it is always of some tribe, and there are many things in the same race. First of all turn your mind to living creatures; you will find that in this wise is begotten the race of wild beasts that haunts the mountains, in this wise the stock of men, in this wise again the dumb herds of scaly fishes, and all the bodies of flying fowls. Wherefore you must confess in the same way that sky and earth and sun, moon, sea, and all else that exists, are not unique, but rather of number numberless; inasmuch as the deep-fixed boundary-stone of life awaits these as surely, and they are just as much of a body that has birth, as every race which is here on earth, abounding in things after its kind.

The soul cannot survive outside the body - humans do not have an immortal soul.

Lucretius Book Three:

[B-3:417] Come now, that you may be able to learn that the minds and the light souls of living things have birth and death, I will hasten to set forth verses long sought out and found with glad effort, worthy to guide your life. Be it yours to link both of these in a single name, and when, to choose a case, I continue to speak of the soul, proving that it is mortal, suppose that I speak of mind as well, inasmuch as they are at one each with the other and compose a single thing.

[B-3:425] First of all, since I have shown that it is finely made of tiny bodies and of first-beginnings far smaller than the liquid moisture of water or cloud or smoke�for it far surpasses them in speed of motion, and is more prone to move when smitten by some slender cause; for indeed it is moved by images of smoke and cloud: even as when slumbering in sleep we see altars breathing steam on high, and sending up their smoke; for beyond all doubt these are idols that are borne to us:�now therefore, since, when vessels are shattered, you behold the water flowing away on every side, and the liquid parting this way and that, and since cloud and smoke part asunder into air, you must believe that the soul too is scattered and passes away far more swiftly, and is dissolved more quickly into its first-bodies, when once it is withdrawn from a man�s limbs, and has departed. For indeed, since the body, which was, as it were, the vessel of the soul, cannot hold it together, when by some chance it is shattered and made rare, since the blood is withdrawn from the veins, how could you believe that the soul could be held together by any air, which is more rare than our body and can contain it less?

[B-3:445] Moreover, we feel that the understanding is begotten along with the body, and grows together with it, and along with it comes to old age. For as children totter with feeble and tender body, so a weak judgment of mind goes with it. Then when their years are ripe and their strength hardened, greater is their sense and increased their force of mind. Afterward, when now the body is shattered by the stern strength of time, and the frame has sunk with its force dulled, then the reason is maimed, the tongue raves, the mind stumbles, all things give way and fail at once. And so it is natural that all the nature of the mind should also be dissolved, even as is smoke, into the high breezes of the air; inasmuch as we see that it is born with the body, grows with it, and, as I have shown, at the same time becomes weary and worn with age.

[B-3:459] Then follows this that we see that, just as the body itself suffers wasting diseases and poignant pain, so the mind too has its biting cares and grief and fear; wherefore it is natural that it should also share in death. Nay more, during the diseases of the body the mind often wanders astray; for it loses its reason and speaks raving words, and sometimes in a heavy lethargy is carried off into a deep unending sleep, when eyes and head fall nodding, in which it hears not voices, nor can know the faces of those who stand round, summoning it back to life, bedewing face and cheeks with their tears. Therefore you must needs admit that the mind too is dissolved, inasmuch as the contagion of disease pierces into it. For both pain and disease are alike fashioners of death, as we have been taught ere now by many a man�s decease.

[B-3:476] Again, when the stinging strength of wine has entered into a man, and its heat has spread abroad throughout his veins, why is it that there follows a heaviness in the limbs, his legs are entangled as he staggers, his tongue is sluggish, and his mind heavy, his eyes swim, shouting, sobbing, quarrelling grows apace, and then all the other signs of this sort that go along with them; why does this come to pass, except that the mastering might of the wine is wont to confound the soul even within the body? But whenever things can be so confounded and entangled, they testify that, if a cause a whit stronger shall have made its way within, they must needs perish, robbed of any further life.

[B-3:487] Nay more, some man, often before our very eyes, seized suddenly by violent disease, falls, as though by a lightning-stroke, and foams at the mouth; he groans and shivers throughout his frame, he loses his wits, his muscles grow taut, he writhes, he breathes in gasps, and tossing to and fro wearies his limbs. Because, you may be sure, his soul rent asunder by the violence of disease throughout his frame, is confounded, and gathers foam, as on the salt sea the waters boil beneath the stern strength of the winds. Further, the groaning is wrung from him, because his limbs are racked with pain, and more than all because the particles of voice are driven out, and are carried crowding forth from his mouth, along the way they are wont, where is their paved path. Loss of wits comes to pass, because the force of mind and soul is confounded, and, as I have shown, is torn apart and tossed to and fro, rent asunder by that same poison. Thereafter, when by now the cause of malady has ebbed, and the biting humours of the distempered body return to their hiding-places, then, as it were staggering, he first rises, and little by little returns to all his senses, and regains his soul. When mind and soul then even within the body are tossed by such great maladies, and in wretched plight are rent asunder and distressed, why do you believe that without the body in the open air they can continue life amid the warring winds?

[B-3:510] And since we perceive that the mind is cured, just like the sick body, and we see that it can be changed by medicine, this too forewarns us that the mind has a mortal life. For whosoever attempts and essays to alter the mind, or seeks to change any other nature, must indeed add parts to it or transfer them from their order, or take away some small whit at least from the whole. But what is immortal does not permit its parts to be transposed, nor that any whit should be added or depart from it. For whenever a thing changes and passes out of its own limits, straightway this is the death of that which was before. And so whether the mind is sick, it gives signs of its mortality, as I have proved, or whether it is changed by medicine. So surely is true fact seen to run counter to false reasoning, and to shut off retreat from him who flees, and with double-edged refutation to prove the falsehood.

[B-3:526] Again, we often behold a man pass away little by little and limb by limb lose the sensation of life; first of all the toes and nails on his feet grow livid, then the feet and legs die, thereafter through the rest of his frame, step by step, pass the traces of chill death. Since this nature of the soul is severed nor does it come forth all intact at one moment, it must be counted mortal. But if by chance you think that it could of its own power draw itself inwards through the frame, and contract its parts into one place, and so withdraw sensation from all the limbs, yet nevertheless that place, to which so great abundance of soul is gathered together, must needs be seen possessed of greater sensation; but since such place is nowhere found, you may be sure, as we said before, it is rent in pieces and scattered abroad, and so perishes. Nay more, if it were our wish to grant what is false, and allow that the soul could be massed together in the body of those, who as they die leave the light of day part by part, still you must needs confess that the soul is mortal, nor does it matter whether it passes away scattered through the air, or is drawn into one out of all its various parts and grows sottish, since sense more and more in every part fails the whole man, and in every part less and less of life remains. [B-3:548] And since the mind is one part of man, which abides rooted in a place determined, just as are ears and eyes and all the other organs of sense which guide the helm of life; and, just as hand and eye or nostrils, sundered apart from us, cannot feel nor be, but in fact are in a short time melted in corruption, so the mind cannot exist by itself without the body and the very man, who seems to be, as it were, the vessel of the mind, or aught else you like to picture more closely bound to it, inasmuch as the body clings to it with binding ties.

[B-3:558] Again, the living powers of body and mind prevail by union, one with the other, and so enjoy life; for neither without body can the nature of mind by itself alone produce the motions of life, nor yet bereft of soul can body last on and feel sensation. We must know that just as the eye by itself, if torn out by the roots, cannot discern anything apart from the whole body, so, it is clear, soul and mind by themselves have no power. Doubtless because in close mingling throughout veins and flesh, throughout sinews and bones, their first-beginnings are held close by all the body, nor can they freely leap asunder with great spaces between; and so shut in they make those sense-giving motions, which outside the body cast out into the breezes of air after death they cannot make, because they are not in the same way held together. For indeed air will be body, yea a living thing, if the soul can hold itself together, and confine itself to those motions, which before it made in the sinews and right within the body. Wherefore, again and again, when the whole protection of the body is undone and the breath of life is driven without, you must needs admit that the sensations of the mind and the soul are dissolved, since the cause of life in soul and body is closely linked.

[B-3:580] Again, since the body cannot endure the severing of the soul, but that it decays with a foul stench, why do you doubt that the force of the soul has gathered together from deep down within, and has trickled out, scattering abroad like smoke, and that the body has changed and fallen crumbling in such great ruin, because its foundations have been utterly moved from their seat, as the soul trickles forth through the limbs, and through all the winding ways, which are in the body, and all the pores? So that in many ways you may learn that the nature of the soul issued through the frame sundered in parts, and that even within the body it was rent in pieces in itself, before it slipped forth and swam out into the breezes of air.

[B-3:592] Nay more, while it moves still within the limits of life, yet often from some cause the soul seems to be shaken and to move, and to wish to be released from the whole body; the face seems to grow flaccid, as at the hour of death, and all the limbs to fall limp on the bloodless trunk. Even so it is, when, as men say, the heart has had a shock, or the heart has failed; when all is alarm, and one and all struggle to clutch at the last link to life. For then the mind is shaken through and through, and all the power of the soul, and both fall in ruin with the body too; so that a cause a whit stronger might bring dissolution. Why do you doubt after all this but that the soul, if driven outside the body, frail as it is, without in the open air, robbed of its shelter, would not only be unable to last on through all time, but could not hold together even for a moment?

[B-3:607] For it is clear that no one, as he dies, feels his soul going forth whole from all his body, nor coming up first to the throat and the gullet up above, but rather failing in its place in a quarter determined; just as he knows that the other senses are dissolved each in their own place. But if our mind were immortal, it would not at its death so much lament that it was dissolved, but rather that it went forth and left its slough, as does a snake.

[B-3:615] Again, why is the understanding and judgment of the mind never begotten in head or feet or hands, but is fixed for all men in one abode in a quarter determined, except that places determined are assigned to each thing for its birth, and in which each several thing can abide when it is created, that so it may have its manifold parts arranged that never can the order of its limbs be seen reversed? So surely does one thing follow on another, nor is flame wont to be born of flowing streams, nor cold to be conceived in fire.

[B-3:624] Moreover, if the nature of the soul is immortal and can feel when sundered from our body, we must, I trow, suppose it endowed with five senses. Nor in any other way can we picture to ourselves the souls wandering in the lower world of Acheron. And so painters and the former generations of writers have brought before us souls thus endowed with senses. Yet neither eyes nor nose nor even hand can exist for the soul apart from body, nor again tongue apart or ears; the souls cannot therefore feel by themselves or even exist.

[B-3:634] And since we feel that the sensation of life is present in the whole body, and we see that the whole is a living thing, if some force suddenly hew it in the middle with swift blow, so that it severs each half apart, beyond all doubt the force of the soul too will be cleft in twain, torn asunder and riven together with the body. But what is cleft and separates into any parts, disclaims, assuredly, that its nature is everlasting.

[B-3:642] They tell how often scythe-bearing chariots, glowing in the mellay of slaughter, so suddenly lop off limbs, that the part which falls lopped off from the frame is seen to shiver on the ground, while in spite of all the mind and spirit of the man cannot feel the pain, through the suddenness of the stroke, and at the same time, because his mind is swallowed up in the fervour of the fight; with the body that is left him he makes for the fight and the slaughter, and often knows not that his left arm with its shield is gone, carried away by the wheels among the horses and the ravening scythes; and another sees not that his right arm has dropped, while he climbs up and presses onward. Then another struggles to rise when his leg is lost, while at his side on the ground his dying foot twitches its toes. And the head lopped off from the warm living trunk keeps on the ground the look of life and the wide-open eyes, until it has yielded up all the last vestiges of soul.

[B-3:657] Nay more, if you should choose to chop into many parts with an axe the body of a snake with quivering tongue, angry tail, and long body, you will then perceive all the hewn parts severally writhing under the fresh blow, and scattering the ground with gore, and the fore part making open-mouthed for its own hinder part, in order that, smitten by the burning pain of the wound, it may quench it with its bite. Shall we say then that there is a whole soul in all those little parts? But by that reasoning it will follow that one living creature had many souls in its body. And so that soul which was one together with the body has been severed; wherefore both body and soul must be thought mortal, since each alike is cleft into many parts.

[B-3:670] Moreover, if the nature of the soul is immortal, and it enters into the body at our birth, why can we not remember also the part of our life already gone, why do we not preserve traces of things done before? For if the power of the mind is so much changed that all remembrance of things past is lost to it, that state is not, I trow, a far step from death; wherefore you must needs admit that the soul, which was before, has passed away, and that that which now is, has now been created.

[B-3:679] Moreover, if when our body is already formed the living power of the mind is wont to be put in just when we are born, and when we are crossing the threshold into life, it would not then be natural that it should be seen to grow with the body, yea, together with the limbs in the very blood, but �tis natural that it should live all alone by itself as in a den, yet so that the whole body nevertheless is rich in sensation. Wherefore, again and again, we must not think that souls are without a birth, or released from the law of death. For neither can we think that they could be so closely linked to our bodies if they were grafted in them from without�but that all this is so, plain fact on the other hand declares: for the soul is so interlaced through veins, flesh, sinews, and bones that the teeth, too, have their share in sensation; as toothache shows and the twinge of cold water, and the biting on a sharp stone if it be hid in a piece of bread�nor, when they are so interwoven, can they, it is clear, issue forth entire, and unravel themselves intact from all the sinews and bones and joints.

[B-3:698] But if by chance you think that the soul is wont to be grafted in us from without, and then permeate through our limbs, all the more will it perish as it fuses with the body. For that which permeates dissolves, and so passes away. For even as food parcelled out among all the pores of the body, when it is sent about into all the limbs and members, perishes and furnishes a new nature out of itself, so soul and mind, however whole they may pass into the fresh-made body, still are dissolved as they permeate, while through all the pores there are sent abroad into the limbs the particles, whereof this nature of the mind is formed, which now holds sway in our body, born from that which then perished, parcelled out among the limbs. Wherefore it is seen that the nature of the soul is neither without a birthday nor exempt from death.

[B-3:713] Moreover, are seeds of soul left or not in the lifeless body? For if they are left and are still there, it will follow that it cannot rightly be held immortal, since it has left the body maimed by the loss of some parts. But if it has been removed and fled from the limbs while still entire, so that it has left no part of itself in the body, how is it that corpses, when the flesh is now putrid, teem with worms, and how does so great a store of living creatures, boneless and bloodless, swarm over the heaving frame? But if by chance you believe that the souls are grafted in the worms from without, and can pass severally into their bodies, and do not consider why many thousands of souls should gather together, whence one only has departed, yet there is this that seems worth asking and putting to the test, whether after all those souls go hunting for all the seeds of the little worms, and themselves build up a home to live in, or whether they are, as it were, grafted in bodies already quite formed. But there is no ready reason why they should make the bodies themselves, why they should be at such pains. For indeed, when they are without a body, they do not flit about harassed by disease and cold and hunger. For the body is more prone to suffer by these maladies, and �tis through contact with the body that the mind suffers many ills. But still grant that it be ever so profitable for them to fashion a body wherein to enter; yet there seems to be no way whereby they could. Souls then do not fashion for themselves bodies and frames. Nor yet can it be that they are grafted in bodies already made; for neither will they be able to be closely interwoven, nor will contact be made by a sharing of sensation.

[B-3:741] Again, why does fiery passion go along with the grim brood of lions and cunning with foxes; why is the habit of flight handed on to deer from their sires, so that their father�s fear spurs their limbs? And indeed all other habits of this sort, why are they always implanted in the limbs and temper from the first moment of life, if it be not because a power of mind determined by its own seed and breed grows along with the body of each animal? But if the soul were immortal and were wont to change its bodies, then living creatures would have characters intermingled; the dog of Hyrcanian seed would often flee the onset of the horned hart, and the hawk would fly fearful through the breezes of air at the coming of the dove; men would be witless, and wise the fierce tribes of wild beasts.

[B-3:754] For it is argued on false reasoning, when men say that an immortal soul is altered, when it changes its body: for what is changed, is dissolved, and so passes away. For the parts are transferred and shift from their order; wherefore they must be able to be dissolved too throughout the limbs, so that at last they may all pass away together with the body.

[B-3:760] But if they say that the souls of men always pass into human bodies, still I will ask why a soul can become foolish after being wise, why no child has reason, why the mare�s foal is not as well trained as the bold strength of a horse. We may be sure they will be driven to say that in a weak body the mind too is weak. But if that indeed comes to pass, you must needs admit that the soul is mortal, since it changes so much throughout the frame, and loses its former life and sense.

[B-3:769] Or in what manner will the force of mind be able along with each several body to wax strong and attain the coveted bloom of life, unless it be partner too with the body at its earliest birth? Or why does it desire to issue forth abroad from the aged limbs? does it fear to remain shut up in a decaying body, lest its home, worn out with the long spell of years, fall on it? But an immortal thing knows no dangers.

[B-3:776] Again, that the souls should be present at the wedlock of Venus and the birth of wild beasts, seems to be but laughable; that immortal souls should stand waiting for mortal limbs in numbers numberless, and should wrangle one with another in hot haste, which first before the others may find an entrance; unless by chance the souls have a compact sealed, that whichever arrives first on its wings, shall first have entrance, so that they strive not forcibly at all with one another.

[B-3:784] Again, a tree cannot exist in the sky, nor clouds in the deep waters, nor can fishes live in the fields, nor blood be present in wood, nor sap in stones. It is determined and ordained where each thing can grow and have its place. So the nature of the mind cannot come to birth alone without body, nor exist far apart from sinews and blood. But if this could be, far sooner might the force of mind itself exist in head or shoulders, or right down in the heels, and be wont to be born in any part you will, but at least remain in the same man or the same vessel. But since even within our body it is determined and seen to be ordained where soul and mind can dwell apart and grow, all the more must we deny that it could continue or be begotten outside the whole body. Wherefore, when the body has perished, you must needs confess that the soul too has passed away, rent asunder in the whole body.

[B-3:800] Nay, indeed, to link the mortal with the everlasting, and to think that they can feel together and act one upon the other, is but foolishness. For what can be pictured more at variance, more estranged within itself and inharmonious, than that what is mortal should be linked in union with the immortal and everlasting to brave raging storms?

[B-3:806] Moreover, if ever things abide for everlasting, it must needs be either that, because they are of solid body, they beat back assaults, nor suffer anything to come within them which might unloose the close-locked parts within, such as are the bodies of matter whose nature we have declared before; or that they are able to continue throughout all time, because they are exempt from blows, as is the void, which abides untouched, nor suffers a whit from assault; or else because there is no supply of room all around, into which, as it were, things might part asunder and be broken up�even as the sum of sums is eternal�nor is there any room without into which they may scatter, nor are there bodies which might fall upon them and break them up with stout blow.

[B-3:819] But if by chance the soul is rather to be held immortal for this reason, because it is fortified and protected from things fatal to life, or because things harmful to its life come not at all, or because such as come in some way depart defeated before we can feel what harm they do us \[B-3:clear facts show us that this is not so\]. For besides that it falls sick along with the diseases of the body, there comes to it that which often torments it about things that are to be, and makes it ill at ease with fear, and wears it out with care; and when its evil deeds are past and gone, yet sin brings remorse. There is too the peculiar frenzy of the mind and forgetfulness of the past, yes, and it is plunged into the dark waters of lethargy.

Nothing is supernatural - there are no gods over nature.

Lucretius Book Two:

[1090] And if you learn this surely, and cling to it, nature is seen, free at once, and quit of her proud rulers, doing all things of her own accord alone, without control of gods. For by the holy hearts of the gods, which in their tranquil peace pass placid years, and a life of calm, who can avail to rule the whole sum of the boundless, who to hold in his guiding hand the mighty reins of the deep, who to turn round all firmaments at once, and warm all fruitful lands with heavenly fires, or to be at all times present in all places, so as to make darkness with clouds, and shake the calm tracts of heaven with thunder, and then shoot thunderbolts, and often make havoc of his own temples, or moving away into deserts rage furiously there, plying the bolt, which often passes by the guilty and does to death the innocent and undeserving?

There are no Platonic ideal forms or Aristotelian essences.

Canonics - The Way to Understand The Nature of Knowledge And How To Gain It

Knowledge is possible.

Lucretius Book IV

[469] Again, if any one thinks that nothing is known, he knows not whether that can be known either, since he admits that he knows nothing. Against him then I will refrain from joining issue, who plants himself with his head in the place of his feet. And yet were I to grant that he knows this too, yet I would ask this one question; since he has never before seen any truth in things, whence does he know what is knowing, and not knowing each in turn, what thing has begotten the concept of the true and the false, what thing has proved that the doubtful differs from the certain?�

[478] You will find that the concept of the true is begotten first from the senses, and that the senses cannot be gainsaid. For something must be found with a greater surety, which can of its own authority refute the false by the true. Next then, what must be held to be of greater surety than sense? Will reason, sprung from false sensation, avail to speak against the senses, when it is wholly sprung from the senses? For unless they are true, all reason too becomes false. Or will the ears be able to pass judgement on the eyes, or touch on the ears? or again will the taste in the mouth refute this touch; will the nostrils disprove it, or the eyes show it false? It is not so, I trow. For each sense has its faculty set apart, each its own power, and so it must needs be that we perceive in one way what is soft or cold or hot, and in another the diverse colours of things, and see all that goes along with colour. Likewise, the taste of the mouth has its power apart; in one way smells arise, in another sounds. And so it must needs be that one sense cannot prove another false. Nor again will they be able to pass judgement on themselves, since equal trust must at all times be placed in them. Therefore, whatever they have perceived on each occasion, is true.�

[500] And if reason is unable to unravel the cause, why those things which close at hand were square, are seen round from a distance, still it is better through lack of reasoning to be at fault in accounting for the causes of either shape, rather than to let things clear seen slip abroad from your grasp, and to assail the grounds of belief, and to pluck up the whole foundations on which life and existence rest. For not only would all reasoning fall away; life itself too would collapse straightway, unless you chose to trust the senses, and avoid headlong spots and all other things of this kind which must be shunned, and to make for what is opposite to these. Know, then, that all this is but an empty store of words, which has been drawn up and arrayed against the senses.�

[513] Again, just as in a building, if the first ruler is awry, and if the square is wrong and out of the straight lines, if the level sags a whit in any place, it must needs be that the whole structure will be made faulty and crooked, all awry, bulging, leaning forwards or backwards, and out of harmony, so that some parts seem already to long to fall, or do fall, all betrayed by the first wrong measurements; even so then your reasoning of things must be awry and false, which all springs from false senses.

The senses, feelings, and anticipations are the criteria of knowledge.

All sensations are "true" to us.

Nature has priority over reason.

Practical reason is the way the wise person makes decisions.

Ethics - The Way To Understand The Nature of Living

There are only two categories of feeling - Pleasure and Pain - and Nature gives nothing else by which to determine what to choose and what to avoid.

Pleasure is the same as "absence of pain," and includes all bodily and mental experiences which are not painful. There is no pain where pleasure is present, and thus pleasure is present where pain is absent.

Epicurus�[PD03]: �The limit of quantity in pleasures is the removal of all that is painful.�Wherever pleasure is present, as long as it is there, there is neither pain of body, nor of mind, nor of both at once.�

Epicurus Letter to Menoeceus: �By pleasure we mean the absence of pain in the body and of trouble in the soul.�

Diogenes Laertius X-34: �The internal sensations they say are two, pleasure and pain, which occur to every living creature, and the one is akin to nature and the other alien: by means of these two choice and avoidance are determined.�

On Ends Book One, 30: �Moreover, seeing that if you deprive a man of his senses there is nothing left to him, it is inevitable that nature herself should be the arbiter of what is in accord with or opposed to nature.�Now what facts does she grasp or with what facts is her decision to seek or avoid any particular thing concerned, unless the facts of pleasure and pain?

On Ends Book One, 38:�"Therefore Epicurus refused to allow that there is any middle term between pain and pleasure; what was thought by some to be a middle term, the absence of all pain, was not only itself pleasure, but the highest pleasure possible.�Surely any one who is conscious of his own condition must needs be either in a state of pleasure or in a state of pain. Epicurus thinks that the highest degree of pleasure is defined by the removal of all pain, so that pleasure may afterwards exhibit diversities and differences but is incapable of increase or extension.�

On Ends Book One, 39:�"For if that were the only pleasure which tickled the senses, as it were, if I may say so, and which overflowed and penetrated them with a certain agreeable feeling, then even a hand could not be content with freedom from pain without some pleasing motion of pleasure. But if the highest pleasure is, as Epicurus asserts, to be free from pain, then, O Chrysippus, the first admission was correctly made to you, that the hand, when it was in that condition, was in want of nothing; but the second admission was not equally correct, that if pleasure were a good it would wish for it.�For it would not wish for it for this reason, inasmuch as whatever is free from pain is in pleasure."

On Ends Book One, 56:�By this time so much at least is plain, that the intensest pleasure or the intensest annoyance felt in the mind exerts more influence on the happiness or wretchedness of life than either feeling, when present for an equal space of time in the body.�We refuse to believe, however, that when pleasure is removed, grief instantly ensues, excepting when perchance pain has taken the place of the pleasure; but we Embrace of Practical Reasonthink on the contrary that we experience joy on the passing away of pains, even though none of that kind of pleasure which stirs the senses has taken their place; and from this it may be understood how great a pleasure it is to be without pain. [57] But as we are elated by the blessings to which we look forward, so we delight in those which we call to memory. Fools however are tormented by the recollection of misfortunes; wise men rejoice in keeping fresh the thankful recollection of their past blessings. Now it is in the power of our wills to bury our adversity in almost unbroken forgetfulness, and to agreeably and sweetly remind ourselves of our prosperity. But when we look with penetration and concentration of thought upon things that are past, then, if those things are bad, grief usually ensues, if good, joy.

On Ends Book One, 62: But these doctrines may be stated in a certain manner so as not merely to disarm our criticism, but actually to secure our sanction. For this is the way in which Epicurus represents the wise man as continually happy; he keeps his passions within bounds; about death he is indifferent; he holds true views concerning the eternal gods apart from all dread; he has no hesitation in crossing the boundary of life, if that be the better course.�Furnished with these advantages he is continually in a state of pleasure, and there is in truth no moment at which he does not experience more pleasures than pains. For he remembers the past with thankfulness, and the present is so much his own that he is aware of its importance and its agreeableness, nor is he in dependence on the future, but awaits it while enjoying the present; he is also very far removed from those defects of character which I quoted a little time ago, and when he compares the fool�s life with his own, he feels great pleasure.�And pains, if any befall him, have never power enough to prevent the wise man from finding more reasons for joy than for vexation.

On Ends Book Two, 9�: Cicero: ��[B]ut unless you are extraordinarily obstinate you are bound to admit that 'freedom from pain' does not mean the same thing as 'pleasure.'� Torquatus: �Well but on this point you will find me obstinate, for it is as true as any proposition can be.�

On Ends, Book Two, 11:�Cicero: Still, I replied, granting that there is nothing better (that point I waive for he moment), surely it does not therefore follow that what I may call the negation of pain is the same thing as pleasure?� Torquatus: �Absolutely the same, indeed the negation of pain is a very intense pleasure, he most intense pleasure possible.�

On Ends Book Two, 16�:��This, O Torquatus, is doing violence to one's senses; it is wresting out of our minds the understanding of words with which we are imbued; for who can avoid seeing that these three states exist in the nature of things: first, the state of being in pleasure; secondly, that of being in pain; thirdly, that of being in such a condition as we are at this moment, and you too, I imagine, that is to say, neither in pleasure nor in pain; in such pleasure, I mean, as a man who is at a banquet, or in such pain as a man who is being tortured. What! do you not see a vast multitude of men who are neither rejoicing nor suffering, but in an intermediate state between these two conditions?�No, indeed, said he; I say that all men who are free from pain are in pleasure, and in the greatest pleasure too. Do you, then, say that the man who, not being thirsty himself, mingles some wine for another, and the thirsty man who drinks it when mixed, are both enjoying the same pleasure?�

Epicurus to Idomeneus, Diogenes Laertius:�On this blissful day, which is also the last of my life, I write this to you.�My continual sufferings from strangury and dysentery are so great that nothing could increase them; but I set above them all the gladness of mind at the memory of our past conversations. But I would have you, as becomes your lifelong attitude to me and to philosophy, watch over the children of Metrodorus.

Lucretius Book 3 line 98:��Thus often the body, which is clear to see, is sick, when, all the same we feel pleasure in some other hidden part; and contrariwise it happens that the reverse often comes to be in turn, when one wretched in mind feels pleasure in all his body; in no other wise than if, when a sick man�s foot is painful, all the while, may be, his head is in no pain. Moreover, when the limbs are given up to soft sleep, and the heavy body lies slack and senseless, yet there is something else in us, which at that very time is stirred in many ways, and admits within itself all the motions of joy and baseless cares of heart.�

The limit of quantity of pleasure that can be experienced is reached when no pain Is present.

Pleasure is the only thing which is desirable in and of itself, and is the alpha and omega and guide of life.

Mental pleasures and pains can be more significant to us than bodily pleasures and pains.

Pain is undesirable, but pain should be chosen when greater pleasure or lesser pain results.

Pain is manageable because it is short if intense, endurable if long, and terminable by death if it is not endurable.

We have only this life, and there is no heaven or hell or reward or punishment after death.

Humans have a degree of free will and are therefore responsible for their actions, which are not dictated by Fate

Happiness requires a proper view that the gods are not supernatural but rather models of blessed living, and they do not interfere in the affairs of men.

There is no absolute virtue, but practival virtue is instrumental to achieving pleasure.

Prudence

Friendship

Courage

Justice

Honesty

Confidence

Beneficence

Temperance

Considerateness

Hope

Gratitude

Living In The Present

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