On the nature of things (books 4 - 6)   

And rivers and springs would summon them of old
To slake the thirst, as now from the great hills
The water's down-rush calls aloud and far
The thirsty generations of the wild.
So, too, they sought the grottos of the Nymphs-
The woodland haunts discovered as they ranged-
From forth of which they knew that gliding rills
With gush and splash abounding laved the rocks,
The dripping rocks, and trickled from above
Over the verdant moss; and here and there
Welled up and burst across the open flats.
As yet they knew not to enkindle fire
Against the cold, nor hairy pelts to use
And clothe their bodies with the spoils of beasts;
But huddled in groves, and mountain-caves, and woods,
And 'mongst the thickets hid their squalid backs,
When driven to flee the lashings of the winds
And the big rains. Nor could they then regard
The general good, nor did they know to use
In common any customs, any laws:
Whatever of booty fortune unto each
Had proffered, each alone would bear away,
By instinct trained for self to thrive and live.
And Venus in the forests then would link
The lovers' bodies; for the woman yielded
Either from mutual flame, or from the man's
Impetuous fury and insatiate lust,
Or from a bribe- as acorn-nuts, choice pears,
Or the wild berries of the arbute-tree.
And trusting wondrous strength of hands and legs,
They'd chase the forest-wanderers, the beasts;
And many they'd conquer, but some few they fled,
A-skulk into their hiding-places...

With the flung stones and with the ponderous heft
Of gnarled branch. And by the time of night
O'ertaken, they would throw, like bristly boars,
Their wildman's limbs naked upon the earth,
Rolling themselves in leaves and fronded boughs.
Nor would they call with lamentations loud
Around the fields for daylight and the sun,
Quaking and wand'ring in shadows of the night;
But, silent and buried in a sleep, they'd wait
Until the sun with rosy flambeau brought
The glory to the sky. From childhood wont
Ever to see the dark and day begot
In times alternate, never might they be
Wildered by wild misgiving, lest a night
Eternal should posses the lands, with light
Of sun withdrawn forever. But their care
Was rather that the clans of savage beasts
Would often make their sleep-time horrible
For those poor wretches; and, from home y-driven,
They'd flee their rocky shelters at approach
Of boar, the spumy-lipped, or lion strong,
And in the midnight yield with terror up
To those fierce guests their beds of out-spread leaves.

And yet in those days not much more than now
Would generations of mortality
Leave the sweet light of fading life behind.
Indeed, in those days here and there a man,
More oftener snatched upon, and gulped by fangs,
Afforded the beasts a food that roared alive,