On the nature of things (books 4 - 6)   

From any touch of deity and seem
So far unworthy of numbering with the gods,
That well they may be thought to furnish rather
A goodly instance of the sort of things
That lack the living motion, living sense.
For sure 'tis quite beside the mark to think
That judgment and the nature of the mind
In any kind of body can exist-
Just as in ether can't exist a tree,
Nor clouds in the salt sea, nor in the fields
Can fishes live, nor blood in timber be,
Nor sap in boulders: fixed and arranged
Where everything may grow and have its place.
Thus nature of mind cannot arise alone
Without the body, nor have its being far
From thews and blood. Yet if 'twere possible?-
Much rather might this very power of mind
Be in the head, the shoulders, or the heels,
And, born in any part soever, yet
In the same man, in the same vessel abide
But since within this body even of ours
Stands fixed and appears arranged sure
Where soul and mind can each exist and grow,
Deny we must the more that they can dure
Outside the body and the breathing form
In rotting clods of earth, in the sun's fire,
In water, or in ether's skiey coasts.
Therefore these things no whit are furnished
With sense divine, since never can they be
With life-force quickened.
Likewise, thou canst ne'er
Believe the sacred seats of gods are here
In any regions of this mundane world;
Indeed, the nature of the gods, so subtle,
So far removed from these our senses, scarce
Is seen even by intelligence of mind.
And since they've ever eluded touch and thrust
Of human hands, they cannot reach to grasp
Aught tangible to us. For what may not
Itself be touched in turn can never touch.
Wherefore, besides, also their seats must be
Unlike these seats of ours,- even subtle too,
As meet for subtle essence- as I'll prove
Hereafter unto thee with large discourse.
Further, to say that for the sake of men
They willed to prepare this world's magnificence,
And that 'tis therefore duty and behoof
To praise the work of gods as worthy praise,
And that 'tis sacrilege for men to shake
Ever by any force from out their seats
What hath been stablished by the Forethought old
To everlasting for races of mankind,
And that 'tis sacrilege to assault by words
And overtopple all from base to beam,-
Memmius, such notions to concoct and pile,
Is verily- to dote. Our gratefulness,
O what emoluments could it confer
Upon Immortals and upon the Blessed
That they should take a step to manage aught
For sake of us? Or what new factor could,
After so long a time, inveigle them-
The hitherto reposeful- to desire
To change their former life? For rather he
Whom old things chafe seems likely to rejoice