Lucretius, De Rerum Natura
William Ellery Leonard, Ed.

     And since I've taught thee that the world's great vaults
Are mortal and that sky is fashioned
Of frame e'en born in time, and whatsoe'er
Therein go on and must perforce go on
     . . . . . .
The most I have unravelled; what remains
Do thou take in, besides; since once for all
To climb into that chariot' renowned
     . . . . . .
Of winds arise; and they appeased are
So that all things again...
     . . . . . .
Which were, are changed now, with fury stilled;
All other movements through the earth and sky
Which mortals gaze upon (O anxious oft
In quaking thoughts!), and which abase their minds
With dread of deities and press them crushed
Down to the earth, because their ignorance
Of cosmic causes forces them to yield
All things unto the empery of gods
And to concede the kingly rule to them.
For even those men who have learned full well
That godheads lead a long life free of care,
If yet meanwhile they wonder by what plan
Things can go on (and chiefly yon high things
Observed o'erhead on the ethereal coasts),
Again are hurried back unto the fears
Of old religion and adopt again
Harsh masters, deemed almighty,- wretched men,
Unwitting what can be and what cannot,
And by what law to each its scope prescribed,
Its boundary stone that clings so deep in Time.
Wherefore the more are they borne wandering on
By blindfold reason. And, Memmius, unless
From out thy mind thou spuest all of this
And casteth far from thee all thoughts which be
Unworthy gods and alien to their peace,
Then often will the holy majesties
Of the high gods be harmful unto thee,
As by thy thought degraded,- not, indeed,
That essence supreme of gods could be by this
So outraged as in wrath to thirst to seek
Revenges keen; but even because thyself
Thou plaguest with the notion that the gods,
Even they, the Calm Ones in serene repose,
Do roll the mighty waves of wrath on wrath;
Nor wilt thou enter with a serene breast
Shrines of the gods; nor wilt thou able be
In tranquil peace of mind to take and know
Those images which from their holy bodies
Are carried into intellects of men,
As the announcers of their form divine.
What sort of life will follow after this
'Tis thine to see. But that afar from us
Veriest reason may drive such life away,
Much yet remains to be embellished yet
In polished verses, albeit hath issued forth
So much from me already; lo, there is
The law and aspect of the sky to be
By reason grasped; there are the tempest times
And the bright lightnings to be hymned now-
Even what they do and from what cause soe'er
They're borne along- that thou mayst tremble not,
Marking off regions of prophetic skies
For auguries, O foolishly distraught
Even as to whence the flying flame hath come,
Or to which half of heaven it turns, or how
Through walled places it hath wound its way,
Or, after proving its dominion there,
How it hath speeded forth from thence amain-
Whereof nowise the causes do men know,
And think divinities are working there.
Do thou, Calliope, ingenious Muse,
Solace of mortals and delight of gods,
Point out the course before me, as I race
On to the white line of the utmost goal,
That I may get with signal praise the crown,
With thee my guide!