PART 1 OF 2
Book III: Deals with the Soul, its Nature, and its Fate
Introduction: praise of Epicurus, who has revealed the universe to man.
Thou, who out of deep darkness didst first avail to raise a torch so clear, shedding light upon the true joys of life, ’tis thee I follow, bright star of the Greek race, and in thy deepset prints firmly now I plant my footsteps, not in eager emulation, but rather because for love I long to copy thee; for how could a swallow rival swans, or what might kids with trembling limbs accomplish in a race to compare with the stout strength of a horse? Thou art our father, thou discoverer of truth, thou dost vouchsafe to us a father’s precepts, and from thy pages, our hero, even as bees in flowery glades sip every plant, we in like manner browse on all thy sayings of gold, yea, of gold, and always most worthy of life for evermore. For as soon as thy philosophy, springing from thy godlike soul, begins to proclaim aloud the nature of things, the terrors of the mind fly away, the walls of the world part asunder, I see things moving on through all the void. The majesty of the gods is revealed, and their peaceful abodes, which neither the winds shaken nor clouds soak with showers, nor does the snow congealed with biting frost besmirch them with its white fall, but an ever cloudless sky vaults them over, and smiles with light bounteously spread abroad. Moreover, nature supplies all they need, nor does anything gnaw at their peace of mind at any time. But on the other hand, the quarters  of Acheron are nowhere to be seen, nor yet is earth a barrier to prevent all things being descried, which are carried on underneath through the void below our feet. At these things, as it were, some godlike pleasure and a thrill of awe seizes on me, to think that thus by thy power nature is made so clear and manifest, laid bare to sight on every side.
The nature of the soul.
And since I have shown of what kind are the beginnings of all things, with what diverse shapes they differ, and how of their own accord they fly on, impelled by everlasting motion, and in what manner each several thing can be created out of them; next after this it seems that the nature of the mind and the soul must now be displayed in my verses, and the old fear of Acheron driven headlong away, which utterly confounds the life of men from the very root, clouding all things with the blackness of death, and suffering no pleasure to be pure and unalloyed. For,
False professions of philosophy.
although men often declare that disease and a life of disgrace are more to be feared than the lower realm of death, and that they know that the soul’s nature is of blood, or else of wind,n if by chance their whim so wills it, and that so they have no need at all of our philosophy, you may be sure by this that all is idly vaunted to win praise, and not because the truth is itself accepted.
A crisis reveals the old fear of death,
These same men, exiled from their country and banished far from the sight of men, stained with some foul crime, beset with every kind of care, live on all the same, and, spite of all, to whatever place they come in their misery, they make sacrifice to the dead, and slaughter black cattle and despatch offerings to the gods of the dead, and in their bitter plight far more keenly turn their hearts to religion. Wherefore it is more fitting to watch a man in doubt and  danger, and to learn of what manner he is in adversity; for then at last a real cry is wrung from the bottom of his heart: the mask is torn off, and the truth remains behind. Moreover,
which is the cause of many vices and crimes,
avarice and the blind craving for honours, which constrain wretched men to overleap the boundaries of right, and sometimes as comrades or accomplices in crime to struggle night and day with surpassing toil to rise up to the height of power—these sores in life are fostered in no small degree by the fear of death. For most often scorned disgrace and biting poverty are seen to be far removed from pleasant settled life, and are, as it were, a present dallying before the gates of death; and while men, spurred by a false fear, desire to flee far from them, and to drive them far away, they amass substance by civil bloodshed and greedily multiply their riches, heaping slaughter on slaughter. Hardening their heart they revel in a brother’s bitter death, and hate and fear their kinsmen’s board. In like manner, often through the same fear, they waste with envy that he is powerful, he is regarded, who walks clothed with bright renown; while they complain that they themselves are wrapped in darkness and the mire. Some of them come to ruin to win statues and a name; and often through fear of death so deeply does the hatred of life and the sight of the light possess men, that with sorrowing heart they compass their own death, forgetting that it is this fear which is the source of their woes, which assails their honour, which bursts the bonds of friendship, and overturns affection from its lofty throne.1 For often ere now men have betrayed country and beloved parents,  seeking to shun the realms of Acheron.
and must be dispelled by science.
For even as children tremble and fear everything in blinding darkness, so we sometimes dread in the light things that are no whit more to be feared than what children shudder at in the dark, and imagine will come to pass. 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.
A.: Nature and Formation of the Soul
A. Nature of (a) the mind. The mind is a part of the body,
First I say that the mind,n which we often call the understanding, in which is placed the reasoning and guiding power of life, is a part of a man no whit the less than hand and foot and eyes are created parts of the whole living being. <Yet many wise men have thought>1 that the sensation of the mind is not placed in any part determined, but is a certain vital habit of the body, which the Greeks call a harmony,n
not a ‘harmony’.
in that it makes us live with sensation, although in no part does an understanding exist: as when often good health is said to belong to the body, and yet it is not itself any part of a healthy man. In this wise they do not set the sensation of the mind in any part determined; and in this they seem to me to wander very far astray. Thus often the body,
1. Mind and body are independent in pleasure and pain.
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,
2. In sleep the body is senseless, but the mind active.
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. Now that you may be able to learn that the soul too is in the limbs, and that it is not by a harmony that the body is wont to feel,
(b) The soul is in the body, not a harmony: 1. it survives, when much of the body is lost, but 2. the loss of particles of heat and air causes death.
first of all it comes to pass that when a great part of the body is removed yet often the life lingers on in our limbs; and then again, when a few bodies of heat are scattered abroad and some air has been driven out through the mouth, that same life of a sudden abandons the veins and leaves the bones; so that you may be able to know from this that not all kinds of bodies have an equal part to play, nor do all equally support existence, but that rather those, which are the seeds of wind and burning heat, are the cause that life lingers in the limbs. There is then heat and a life-giving wind in the very body, which abandons our dying frame. Wherefore, since the nature of mind and soul has been revealed as a part of man, give up the name of harmony,
The notion of the vital principle as ‘a harmony’ must be abandoned.
which was handed down to musicians from high Helicon: or else they themselves have dragged it forth from some other source, and brought it over to this thing, which then was without a name of its own. Whatever it is, let them keep it: do you listen to the rest of my discourse.
Mind and soul are one nature,
Now I say that mind and soul are held in union one with the other, and form of themselves a single nature, but that the head, as it were, and lord in the whole body is the reason, which we call mind or understanding, and it is firmly seated in the middle region of the breast.
but mind, in the breast, is supreme.
For here it is that fear and terror throb, around these parts are soothing joys; here then is the understanding and the mind. The rest of the soul, spread abroad throughout the body, obeys and is moved at the will and inclination  of the understanding.
It has pain and joy by itself,
The mind alone by itself has understanding for itself and rejoices for itself, when no single thing stirs either soul or body. And just as, when head or eye hurts within us at the attack of pain, we are not tortured at the same time in all our body; so the mind sometimes feels pain by itself or waxes strong with joy, when all the rest of the soul through the limbs and frame is not roused by any fresh feeling.
but excessive feeling is shared by the soul and so communicated to the body.
Nevertheless, when the understanding is stirred by some stronger fear, we see that the whole soul feels with it throughout the limbs, and then sweat and pallor break out over all the body, and the tongue is crippled and the voice is choked, the eyes grow misty, the ears ring, the limbs give way beneath us, and indeed we often see men fall down through the terror in their mind; so that any one may easily learn from this that the soul is linked in union with the mind; for when it is smitten by the force of the mind, straightway it strikes the body and pushes it on.
Mind and soul are corporeal. For mind acts on body by touch,
This same reasoning shows that the nature of mind and soul is bodily. For when it is seen to push on the limbs, to pluck the body from sleep, to change the countenance, and to guide and turn the whole man—none of which things we see can come to pass without touch, nor touch in its turn without body—must we not allow that mind and soul are formed of bodily nature? Moreover, you see that our mind suffers along with the body, and shares its feelings together in the body.
and is affected by the body’s wounds.
If the shuddering shock of a weapon, driven within and laying bare bones and sinews, does not reach the life, yet faintness follows, and a pleasant swooning to the ground, and a turmoil of mind which comes to pass on the ground,  and from time to time, as it were, a hesitating will to rise. Therefore it must needs be that the nature of the mind is bodily, since it is distressed by the blow of bodily weapons.
Mind and soul are formed of very minute particles:
Now of what kind of body this mind is, and of what parts it is formed, I will go on to give account to you in my discourse. First of all I say that it is very fine in texture, and is made and formed of very tiny particles. That this is so, if you give attention, you may be able to learn from this.
1. because they are so mobile;
Nothing is seen to come to pass so swiftly as what the mind pictures to itself coming to pass and starts to do itself. Therefore the mind bestirs itself more quickly than any of the things whose nature is manifest for all to see. But because it is so very nimble, it is bound to be formed of exceeding round and exceeding tiny seeds, so that its particles may be able to move when smitten by a little impulse. For so water moves and oscillates at the slightest impulse, seeing it is formed of little particles, quick to roll. But, on the other hand, the nature of honey is more stable, its fluid more sluggish, and its movement more hesitating; for the whole mass of its matter clings more together, because, we may be sure, it is not formed of bodies so smooth, nor so fine and round. For a light trembling breath can constrain a high heap of poppy-seed to scatter from top to bottom before your eyes: but, on the other hand, a pile of stones or corn-ears it can by no means separate. Therefore, in proportion as bodies are tinier and smoother, so they are gifted with nimbleness. But, on the other hand, all things that are found to be of greater weight or more spiky, the more firm set they are. Now, therefore, since the nature of the mind has been found nimble beyond the rest, it  must needs be formed of bodies exceeding small and smooth and round. And this truth, when known to you, will in many things, good friend, prove useful, and will be reckoned of service.
2. because their departure at death makes no change in appearance or weight.
This fact, too, declares the nature of the mind, of how thin a texture it is formed, and in how small a place it might be contained, could it be gathered in a mass; that as soon as the unruffled peace of death has laid hold on a man, and the nature of mind and soul has passed away, you could discern nothing there, that sight or weight can test, stolen from the entire body; death preserves all save the feeling of life, and some warm heat. And so it must needs be that the whole soul is made of very tiny seeds, and is linked on throughout veins, flesh, and sinews; inasmuch as, when it is all already gone from the whole body, yet the outer contour of the limbs is preserved unbroken, nor is a jot of weight wanting. Even so it is, when the flavour of wine has passed away or when the sweet breath of a perfume is scattered to the air, or when its savour is gone from some body; still the thing itself seems not a whit smaller to the eyes on that account, nor does anything seem withdrawn from its weight, because, we may be sure, many tiny seeds go to make flavours and scent in the whole body of things. Wherefore once and again you may know that the nature of the understanding and the soul is formed of exceeding tiny seeds, since when it flees away it carries with it no jot of weight.
Composition of the soul: wind, beat, air;
Nevertheless we must not think that this nature is simple. For it is a certain thin breath that deserts the dying, mingled with heat, and heat moreover draws air with it; nor indeed is there any heat, that has not air too mixed with it. For because its nature is rare, it  must needs be that many first-beginnings of air move about in it. Already then we have found the nature of the soul to be triple; and yet all these things are not enough to create sensation, since the mind does not admit that any of these can create the motions that bring sensation <or the thoughts of the mind>.1 It must needs be then that some fourth naturen too be added to these.
the fourth nature.
But it is altogether without name; than it there exists nothing more nimble, nothing more fine, nor made of smaller or smoother particles.
The course of sensation.
It first sends abroad the motions that bring sensation among the limbs: for it is first stirred, being made up of small shapes; then heat receives the motions and the hidden power of wind, and then air; then all things are set moving, the blood receives the shock and all the flesh feels the thrill; last of all it passes to the bones and marrow, be it pleasure or the heat of opposite kind. Yet not for naught can pain pierce thus far within, nor any biting ill pass through, but that all things are so disordered that there is no more place for life, and the parts of the soul scatter abroad through all the pores of the body. But for the most part a limit is set to these motions, as it were, on the surface of the body: and by this means we avail to keep our life.
The combination of the elements in the soul.
Now, as I long to give account in what way these parts are mingled one with another, and in what manner bound together so that they can act, against my will the poverty of my country’s tongue holds me back; yet, despite that, I will touch the theme, as best I can in brief. For the first-beginnings course to and fro among themselves with the motions of first-beginnings,n so that no single one can be put apart, nor can its powers be set in play divided  from others by empty space, but they are, as it were, the many forces of a single body. Even as in the flesh of any living creature anywhere there is smell and a certain heat and savour, and yet of all these is made up the bulk of a single body. Thus heat and air and the hidden power of wind mingled create one nature together with that nimble force, which sends among them from itself the beginning of motion, whence the motion that brings sensation first arises throughout the flesh.
The hidden fourth nature.
For right deep within this nature lies hid far below, nor is there anything further beneath than this in our bodies, and it is moreover the very soul of the whole soul. Even as in our limbs and our whole body the force of the mind and the power of the soul is secretly immingled, because it is formed of small and rare bodies. So, you see, this force without a name, made of tiny bodies, lies concealed, and is moreover, as it were, the very soul of the whole soul and holds sway in the whole body.
The other elements.
In like manner it must needs be that wind and air and heat act mingled together throughout the limbs, and one is more above or below the rest, yet so that one single thing is seen to be composed of all; lest heat and wind apart, and apart from them the power of air, should put an end to sensation, and by their separation break it up.
Heat causes anger;
Moreover the mind possesses that heat, which it dons when it boils with rage, and the fire flashes more keenly from the eyes. Much cold breath too it has, which goes along with fear,
and starts a shuddering in the limbs and stirs the whole frame.
And it has too that condition of air lulled to rest, which comes to pass when the breast is calm and the face unruffled. But those creatures have more of heat, whose fiery heart and passionate mind easily boils up in  anger.
Illustrations from animals
Foremost in this class is the fierce force of lions, who often as they groan break their hearts with roaring, and cannot contain in their breast the billows of their wrath. But the cold heart of deer is more full of wind, and more quickly it rouses the chilly breath in its flesh, which makes a shuddering motion start in the limbs. But the nature of oxen draws its life rather from calm air, nor ever is the smoking torch of anger set to it to rouse it overmuch, drenching it with the shadow of murky mist, nor is it pierced and frozen by the chill shafts of fear: it has its place midway between the two, the deer and the raging lions.
and from men.
So is it with the race of men. However much training gives some of them an equal culture, yet it leaves those first traces of the nature of the mind of each. Nor must we think that such maladies can be plucked out by the roots, but that one man will more swiftly fall into bitter anger, another be a little sooner assailed by fear, while a third will take some things more gently than is right.
The power of philosophy to overcome natural habits.
And in many other things it must needs be that the diverse natures of men differ, and the habits that follow thereon; but I cannot now set forth the secret causes of these, nor discover names for all the shapes of the first atoms, whence arises this variety in things. One thing herein I see that I can affirm, that so small are the traces of these natures left, which reason could not dispel for us, that nothing hinders us from living a life worthy of the gods.
Union of soul and body is the cause of life.
This nature then of the souln is protected by the whole body, and is itself the guardian of the body, and the cause of its life; for the two cling together by common roots, and it is seen that they cannot be torn asunder without destruction. Even as it is not easy to tear out the scent  from lumps of frankincense, but that its nature too passes away. So it is not easy to draw out the nature of mind and soul from the whole body, but that all alike is dissolved.
Each is necessary to the other,
With first-beginnings so closely interlaced from their very birth are they begotten, endowed with a life shared in common, nor, as is clear to see, can the power of body or mind feel apart, either for itself without the force of the other, but by the common motions of the two on this side and on that is sensation kindled and fanned throughout our flesh.
and cannot exist without it.
Moreover, the body is never begotten by itself, nor grows alone, nor is seen to last on after death. For never, as the moisture of water often gives off the heat, which has been lent to it, and is not for that reason torn asunder itself, but remains unharmed, never, I say, in this way can the abandoned frame bear the separation of the soul, but it utterly perishes torn asunder and rots away. So from the beginning of existence body and soul, in mutual union, learn the motions that give life, yea, even when hidden in the mother’s limbs and womb, so that separation cannot come to pass without hurt and ruin; so that you can see, since the cause of their life is linked together, that their natures too must be linked in one.
The body itself feels owing to its combination with soul.
For the rest, if any one is for proving that the body does not feel, and believes that it is the soul mingled with the whole body that takes up this motion, which we call sensation, he is fighting even against plain and true facts. For who will ever tell us what the feeling of the body is, if it be not what the clear fact itself has shown and taught us? ‘But when the soul has passed away the body is utterly deprived of sensation.’ Yes, for it loses that which was not its own in life, and many other things besides it loses, when it is driven out of life.
Example: the eyes themselves see and are not ‘doors to the soul’.
To say, moreover, that the eyes can see nothing, but that the mind looks out through them as when doors are opened, is hard, seeing that the feeling in the eyes leads us the other way; for that feeling drags us on and forces us to the very pupils;1 yea, for often we cannot see bright things, because our sight is thwarted by the light. But that does not happen with doors; for the doors, through which we see, do not suffer any pain when they are opened. Moreover, if our eyes are as doors,n then the mind, it is clear, ought to discern things better if the eyes were taken out and removed, door-posts and all.
Soul and body atoms do not alternate.
Herein you could by no means accept the teaching, which the judgement of the holy man, Democritus,n sets before us, that the first-beginnings of soul and body alternate, set each next each, first one and then the other, and so weave the web of our limbs.
Soul atoms are set at intervals.
For, as the particles of soul are far smaller than those of which our body and flesh are composed, so too they are less in number, and only here and there are scattered through our frame; so that you may warrant this: that the first-beginnings of soul preserve distances apart as great as are the smallest bodies which, when cast upon us, can first start the motions of sensation in the body.
Proof from things which we do not feel when they touch the body.
For sometimes we do not feel the clinging of dust on the body, nor know that chalk has been shaken on us and settled on our limbs, nor do we feel a mist at night, nor the slender threads of the spider that strike against us, when we are caught in its meshes as we move, nor know that his twisted web has fallen on our head, or the feathers of birds or the flying down from plants, which from its exceeding lightness,  for the most part falls not lightly; nor do we feel the passage of every kind of crawling creature nor each single footstep, which gnats and other insects plant upon our body. Indeed, so many things must first be stirred in us, before the seeds of soul mingled with our bodies throughout our frame feel that the first-beginnings have been shaken, and before they can by jostling in these spaces set between, rush together, unite and leap back in turn.
The mind is more essential for life than the soul.
Now the mind is more the keeper of the fastnesses of life, more the monarch of life than the power of the soul. For without the mind and understanding no part of the soul can hold out in the frame for a tiny moment of time, but follows in its train without demur, and scatters into air, and deserts the chill frame in the frost of death. Yet one, whose mind and understanding have abode firm, abides in life. However much the trunk is mangled with the limbs hewn all around, though the soul be rent from him all around and wrested from his limbs, he lives and draws in the breath of heaven to give him life. Robbed, if not of all, yet of a great part of his soul, still he lingers on and clings to life.
Illustration from the pupil of the eye.
Even as, when the eye is mangled all around, if the pupil has abode unharmed, then the living power of sight stands firm, if only you do not destroy the whole ball of the eye, and cut all round the pupil, and leave it by itself: for that will not be done without the destruction of the eyes too. But if that tiny part in the middle of the eye is eaten away, at once light is gone, and darkness follows on, however much the bright ball is in other places unharmed. In such a compact are soul and mind ever bound together.
B.: Proofs of the Mortality of the Soul
B. The soul is mortal.
Come now, that you may be able to learn that the  minds and the light soulsn 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 yoursn 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.
Proofs. 1. It is mobile and made of minute atoms:
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:n 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,
therefore it cannot be held together in air when it has left the body.
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>?1
2. It is born, grows, and ages with the body:
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 judgement 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.
therefore it is dissolved with it.
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.
3. The mind, like the body, has pains.
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;
4. The diseases of the body affect the mind.
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. Again,
5. Intoxication affects body and mind alike.
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.
6. Still more does epilepsy, which tears and rends the soul.
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,1 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?
7. Mind, like body, can be cured by medicine.
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.
8. In cases of mortification, the soul perishes bit by bit with the body.
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.
It cannot contract into one place,
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,
or if it does, still it perishes.
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.
9. The mind, like any other organ of sense, cannot exist without the body.
And since the mind is one part of man,n 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.
10. Soul and body live by their mutual union.
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,
In the air the soul could not be held together or produce the vital motions.
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.
11. The gradual decay of the body testifies to the breaking up of the soul before departure.
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. Nay more,
12. A great shock, not resulting in death, shows the same disturbance of the soul.
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;n 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?
For no dying man feels his soul depart all at once.
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.