On the Nature of Things by Lucretius — Book IV, Hearing, taste, and smell

And now remains to demonstrate with ease
How other senses each their things perceive.
Firstly, a sound and every voice is heard,
When, getting into ears, they strike the sense
With their own body. For confess we must
Even voice and sound to be corporeal,
⁵²⁷Because they're able on the sense to strike.
Besides voice often scrapes against the throat,
And screams in going out do make more rough
The wind-pipe- naturally enough, methinks,
When, through the narrow exit rising up
In larger throng, these primal germs of voice
Have thus begun to issue forth. In sooth,
⁵³²Also the door of the mouth is scraped against
[By air blown outward] from distended [cheeks].
. . . . . .
And thus no doubt there is, that voice and words
Consist of elements corporeal,
With power to pain. Nor art thou unaware
Likewise how much of body's ta'en away,
How much from very thews and powers of men
May be withdrawn by steady talk, prolonged
Even from the rising splendour of the morn
⁵³⁷To shadows of black evening,- above all
If 't be outpoured with most exceeding shouts.
Therefore the voice must be corporeal,
Since the long talker loses from his frame
A part.
⁵⁴²Moreover, roughness in the sound
Comes from the roughness in the primal germs,
As a smooth sound from smooth ones is create;
Nor have these elements a form the same
When the trump rumbles with a hollow roar,
As when barbaric Berecynthian pipe
Buzzes with raucous boomings, or when swans
⁵⁴⁷By night from icy shores of Helicon
With wailing voices raise their liquid dirge.

⁵⁴⁹Thus, when from deep within our frame we force
These voices, and at mouth expel them forth,
The mobile tongue, artificer of words,
Makes them articulate, and too the lips
By their formations share in shaping them.
Hence when the space is short from starting-point
To where that voice arrives, the very words
⁵⁵⁴Must too be plainly heard, distinctly marked.
For then the voice conserves its own formation,
Conserves its shape. But if the space between
Be longer than is fit, the words must be
Through the much air confounded, and the voice
⁵⁵⁹Disordered in its flight across the winds-
And so it haps, that thou canst sound perceive,
Yet not determine what the words may mean;
To such degree confounded and encumbered
The voice approaches us. Again, one word,
Sent from the crier's mouth, may rouse all ears
⁵⁶⁴Among the populace. And thus one voice
Scatters asunder into many voices,
Since it divides itself for separate ears,
Imprinting form of word and a clear tone.
But whatso part of voices fails to hit
The ears themselves perishes, borne beyond,
⁵⁶⁹Idly diffused among the winds. A part,
Beating on solid porticoes, tossed back
Returns a sound; and sometimes mocks the ear
With a mere phantom of a word.

⁵⁷²When this
Thou well hast noted, thou canst render count
Unto thyself and others why it is
Along the lonely places that the rocks
Give back like shapes of words in order like,
When search we after comrades wandering
Among the shady mountains, and aloud
Call unto them, the scattered. I have seen
⁵⁷⁷Spots that gave back even voices six or seven
For one thrown forth- for so the very hills,
Dashing them back against the hills, kept on
With their reverberations. And these spots
The neighbouring country-side doth feign to be
Haunts of the goat-foot satyrs and the nymphs;
⁵⁸²And tells ye there be fauns, by whose night noise
And antic revels yonder they declare
The voiceless silences are broken oft,
And tones of strings are made and wailings sweet
Which the pipe, beat by players' finger-tips,
Pours out; and far and wide the farmer-race
Begins to hear, when, shaking the garmentings
⁵⁸⁷Of pine upon his half-beast head, god-Pan
With puckered lip oft runneth o'er and o'er
The open reeds,- lest flute should cease to pour
The woodland music! Other prodigies
And wonders of this ilk they love to tell,
⁵⁹²Lest they be thought to dwell in lonely spots
And even by gods deserted. This is why
They boast of marvels in their story-tellings;
Or by some other reason are led on-
Greedy, as all mankind hath ever been,
To prattle fables into ears.

⁵⁹⁵Again,
One need not wonder how it comes about
That through those places (through which eyes cannot
View objects manifest) sounds yet may pass
And assail the ears. For often we observe
People conversing, though the doors be closed;
No marvel either, since all voice unharmed
⁶⁰⁰Can wind through bended apertures of things,
While idol-films decline to- for they're rent,
Unless along straight apertures they swim,
Like those in glass, through which all images
Do fly across. And yet this voice itself,
In passing through shut chambers of a house,
Is dulled, and in a jumble enters ears,
And sound we seem to hear far more than words.
Moreover, a voice is into all directions
Divided up, since off from one another
New voices are engendered, when one voice
Hath once leapt forth, outstarting into many-
⁶⁰⁵As oft a spark of fire is wont to sprinkle
Itself into its several fires. And so,
Voices do fill those places hid behind,
Which all are in a hubbub round about,
Astir with sound. But idol-films do tend,
⁶¹⁰As once sent forth, in straight directions all;
Wherefore one can inside a wall see naught,
Yet catch the voices from beyond the same.

⁶¹⁵Nor tongue and palate, whereby we flavour feel,
Present more problems for more work of thought.
Firstly, we feel a flavour in the mouth,
When forth we squeeze it, in chewing up our food,-
As any one perchance begins to squeeze
With hand and dry a sponge with water soaked.
⁶²⁰Next, all which forth we squeeze is spread about
Along the pores and intertwined paths
Of the loose-textured tongue. And so, when smooth
The bodies of the oozy flavour, then
Delightfully they touch, delightfully
They treat all spots, around the wet and trickling
Enclosures of the tongue. And contrariwise,
⁶²⁵They sting and pain the sense with their assault,
According as with roughness they're supplied.
Next, only up to palate is the pleasure
Coming from flavour; for in truth when down
'Thas plunged along the throat, no pleasure is,
Whilst into all the frame it spreads around;
⁶³⁰Nor aught it matters with what food is fed
The body, if only what thou take thou canst
Distribute well digested to the frame
And keep the stomach in a moist career.
Now, how it is we see some food for some,
Others for others....
. . . . . .
I will unfold, or wherefore what to some
Is foul and bitter, yet the same to others
⁶³⁵Can seem delectable to eat,- why here
So great the distance and the difference is
That what is food to one to some becomes
Fierce poison, as a certain snake there is
Which, touched by spittle of a man, will waste
And end itself by gnawing up its coil.
⁶⁴⁰Again, fierce poison is the hellebore
To us, but puts the fat on goats and quails.
That thou mayst know by what devices this
Is brought about, in chief thou must recall
What we have said before, that seeds are kept
Commixed in things in divers modes. Again,
⁶⁴⁵As all the breathing creatures which take food
Are outwardly unlike, and outer cut
And contour of their members bounds them round,
Each differing kind by kind, they thus consist
Of seeds of varying shape. And furthermore,
Since seeds do differ, divers too must be
⁶⁵⁰The interstices and paths (which we do call
The apertures) in all the members, even
In mouth and palate too. Thus some must be
More small or yet more large, three-cornered some
And others squared, and many others round,
And certain of them many-angled too
⁶⁵⁵In many modes. For, as the combination
And motion of their divers shapes demand,
The shapes of apertures must be diverse
And paths must vary according to their walls
That bound them. Hence when what is sweet to some,
Becomes to others bitter, for him to whom
'Tis sweet, the smoothest particles must needs
⁶⁶⁰Have entered caressingly the palate's pores.
And, contrariwise, with those to whom that sweet
Is sour within the mouth, beyond a doubt
The rough and barbed particles have got
Into the narrows of the apertures.
Now easy it is from these affairs to know
Whatever...
. . . . . .
Indeed, where one from o'er-abundant bile
⁶⁶⁵Is stricken with fever, or in other wise
Feels the roused violence of some malady,
There the whole frame is now upset, and there
All the positions of the seeds are changed,-
So that the bodies which before were fit
To cause the savour, now are fit no more,
And now more apt are others which be able
⁶⁷⁰To get within the pores and gender sour.
Both sorts, in sooth, are intermixed in honey-
What oft we've proved above to thee before.

⁶⁷³Now come, and I will indicate what wise
Impact of odour on the nostrils touches.
And first, 'tis needful there be many things
From whence the streaming flow of varied odours
May roll along, and we're constrained to think
They stream and dart and sprinkle themselves about
Impartially. But for some breathing creatures
One odour is more apt, to others another-
⁶⁷⁸Because of differing forms of seeds and pores.
Thus on and on along the zephyrs bees
Are led by odour of honey, vultures too
By carcasses. Again, the forward power
Of scent in dogs doth lead the hunter on
Whithersoever the splay-foot of wild beast
Hath hastened its career; and the white goose,
⁶⁸³The saviour of the Roman citadel,
Forescents afar the odour of mankind.
Thus, diversly to divers ones is given
Peculiar smell that leadeth each along
To his own food or makes him start aback
From loathsome poison, and in this wise are
The generations of the wild preserved.
Yet is this pungence not alone in odours
Or in the class of flavours; but, likewise,
The look of things and hues agree not all
So well with senses unto all, but that
Some unto some will be, to gaze upon,
More keen and painful. Lo, the raving lions,
They dare not face and gaze upon the cock
Who's wont with wings to flap away the night
From off the stage, and call the beaming morn
With clarion voice- and lions straightway thus
Bethink themselves of flight, because, ye see,
Within the body of the cocks there be
Some certain seeds, which, into lions' eyes
Injected, bore into the pupils deep
And yield such piercing pain they can't hold out
Against the cocks, however fierce they be-
Whilst yet these seeds can't hurt our gaze the least,
Either because they do not penetrate,
Or since they have free exit from the eyes
As soon as penetrating, so that thus
They cannot hurt our eyes in any part
By there remaining.
To speak once more of odour;
Whatever assail the nostrils, some can travel
⁶⁸⁸A longer way than others. None of them,
However, 's borne so far as sound or voice-
While I omit all mention of such things
As hit the eyesight and assail the vision.
For slowly on a wandering course it comes
And perishes sooner, by degrees absorbed
⁶⁹³Easily into all the winds of air;-
And first, because from deep inside the thing
It is discharged with labour (for the fact
That every object, when 'tis shivered, ground,
Or crumbled by the fire, will smell the stronger
Is sign that odours flow and part away
From inner regions of the things). And next,
⁶⁹⁸Thou mayest see that odour is create
Of larger primal germs than voice, because
It enters not through stony walls, wherethrough
Unfailingly the voice and sound are borne;
Wherefore, besides, thou wilt observe 'tis not
So easy to trace out in whatso place
The smelling object is. For, dallying on
⁷⁰³Along the winds, the particles cool off,
⁷⁰⁸And then the scurrying messengers of things
⁷¹³Arrive our senses, when no longer hot.
⁷¹⁸So dogs oft wander astray, and hunt the scent.