Being is created out of matter, Lucretius states,
as a consequence of natural law, not by miracles
or divine intervention. The atoms that constitute
everything cannot be destroyed, only changed. Al-
though objects seem solid to us, they are actually
made up of widely dispersed, always moving
atoms. Differences in atomic density account for
differences in weight. Wherever atoms are absent,
there is void; these are the only two forms of matter.
Book II explains that not only is pleasure, or
mind-body harmony, the only true criterion of the
good, but also that nature wants it for us:
“[N]ature demands no favor but that pain / be
sundered from the flesh, that in the mind be a
sense of joy, unmixed with care and fear!”
(II.17–19) Wealth, status, and power cannot bene-
fit the soul unless they eliminate the fear of death,
and they do not; only human reason can do that.
Book II also discusses at greater length the ways in
which atoms travel and mutate and how different
shapes produce different physical sensations when
we perceive them through our senses.
The fear of death is the source of almost all
human ills, according to Book III, which under-
takes to dispel this fear. The soul is corporeal, made
of atoms like any limb or organ. The idea that the
immortal (soul) and mortal (physical body) can
coexist is nonsense. When the soul’s vessel, the
human body, dies, the soul ceases to exist. If the
soul dies, it cannot possibly suffer; so fear of death
is foolish. There is no afterlife, according to Lu-
cretius, and “Hell is right here [on earth], the work
of foolish men!” (III.1023) Therefore, superstitions
are a waste of time and prayers are a waste of
breath.
In Book IV, Lucretius explores the mechanics
of the senses and thought vis-à-vis atomic theory.
For instance, we are able to see because the images
release atoms that strike our eyes; sounds and
speech are matter and also cause hearing via phys-
ical impact. Sounds must be matter, Lucretius ar-
gues, because it is well known that “he who speaks
at length loses some weight”! (IV.541) Contrary to
popular belief, echoes are not caused by supernat-
ural beings, but rather occur when sound-matter
strikes a surface and is thrown back to the speaker.
The atoms that cause odors are languid—they do
not travel as far as sound and sight—and large, as
they do not readily penetrate walls. Lucretius goes
on to say that mistakes in sense perception occur
because the mind has reached an erroneous con-
clusion, not because the organs of sense perception
are faulty.
Lucretius discusses astronomical and cosmo-
logical matters in Book V. Earth came about due to
the forces inherent in natural law and had nothing
to do with the activities of any deities or divine be-
ings. The celestial bodies, the sea, and the land are
not made of godlike stuff, eternal and fixed; rather,
the earth as we know it is a combination of atoms
and void. In other words, matter cannot exist in-
definitely and will one day perish.
Lucretius then provides an anthropological ac-
count of the increasing refinement of the human
race, concluding:
Navigation, agriculture, cities, laws
war, travel, clothing, and all such things else,
money, and life’s delights, from top to bottom,
poetry, painting, the cunning sculptor’s art,
the search, the trial and error of nimble minds
have taught us, inching forward, step by step.
Thus, step by step, time lays each fact before us,
and reason lifts it to the coasts of light;
for men saw one thing clarify another
till civilization reached its highest peak.
(VI.1448–1457)
Book VI acts as a summary of sorts in which
Lucretius recounts some of his previous insights.
His lyricism in this book is characteristic of the
work as a whole.
In the introduction to Lucretius (Basic Books,
1965), Donald R. Dudley states that Lucretius “is,
pre-eminently, the poet of the intelligible world,
of the processes which govern it, and of the intel-
lect by which these processes are revealed.” And,
according to translator Frank O. Copley,“Lucretius
178 Lucretius