On the nature of things (books 4 - 6)   

The neighbouring country-side doth feign to be
Haunts of the goat-foot satyrs and the nymphs;
And 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
Of 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,
Lest 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.
Again,
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
Can 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-
As 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,
As once set forth, in straight directions all;
Wherefore one can inside a wall see naught,
Yet catch the voices from beyond the same.

Nor 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.
Next, 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,
They sting and pain the sense with their assault,
According as with roughness they're supplied.
Next, only up to palate is the pleasure