Of the Nature of Things [De Rerum Natura]

 Table of Contents

 Book I

 Proem

 The Void

 Nothing Exists Per Se Except Atoms and the Void

 Character of the Atoms

 Confutation of Other Philosophers

Confutation of Other Philosophers

And on such grounds it is that those who held

The stuff of things is fire, and out of fire

Alone the cosmic sum is formed, are seen

Mightily from true reason to have lapsed.

Of whom, chief leader to do battle, comes

That Heraclitus, famous for dark speech

Among the silly, not the serious Greeks

Who search for truth. For dolts are ever prone

That to bewonder and adore which hides

Beneath distorted words, holding that true

Which sweetly tickles in their stupid ears,

Or which is rouged in finely finished phrase.

For how, I ask, can things so varied be,

If formed of fire, single and pure? No whit

'Twould help for fire to be condensed or thinned,

If all the parts of fire did still preserve

But fire's own nature, seen before in gross.

The heat were keener with the parts compressed,

Milder, again, when severed or dispersed -

And more than this thou canst conceive of naught

That from such causes could become; much less

Might earth's variety of things be born

From any fires soever, dense or rare.

This too: if they suppose a void in things,

Then fires can be condensed and still left rare;

But since they see such opposites of thought

Rising against them, and are loath to leave

An unmixed void in things, they fear the steep

And lose the road of truth. Nor do they see,

That, if from things we take away the void,

All things are then condensed, and out of all

One body made, which has no power to dart

Swiftly from out itself not anything -

As throws the fire its light and warmth around,

Giving thee proof its parts are not compact.

But if perhaps they think, in other wise,

Fires through their combinations can be quenched

And change their substance, very well: behold,

If fire shall spare to do so in no part,

Then heat will perish utterly and all,

And out of nothing would the world be formed.

For change in anything from out its bounds

Means instant death of that which was before;

And thus a somewhat must persist unharmed

Amid the world, lest all return to naught,

And, born from naught, abundance thrive anew.

Now since indeed there are those surest bodies

Which keep their nature evermore the same,

Upon whose going out and coming in

And changed order things their nature change,

And all corporeal substances transformed,

'Tis thine to know those primal bodies, then,

Are not of fire. For 'twere of no avail

Should some depart and go away, and some

Be added new, and some be changed in order,

If still all kept their nature of old heat:

For whatsoever they created then

Would still in any case be only fire.

The truth, I fancy, this: bodies there are

Whose clashings, motions, order, posture, shapes

Produce the fire and which, by order changed,

Do change the nature of the thing produced,

And are thereafter nothing like to fire

Nor whatso else has power to send its bodies

With impact touching on the senses' touch.

Again, to say that all things are but fire

And no true thing in number of all things

Exists but fire, as this same fellow says,

Seems crazed folly. For the man himself

Against the senses by the senses fights,

And hews at that through which is all belief,

Thro