De Rerum Natura – Study Guide and Meleta

Our recommended translations:
LUCRETIUS, ON THE NATURE OF THINGS, Translated by Ian Johnston

Titus Lucretius Carus, ”On the Nature of Things”, English translation by Lamberto Bozzi

TITVS LVCRETIVS CARVS – Twentiers

De Rerum Natura, or On the Nature of Things, is an epic poem from the First Century BCE written by Lucretius. It introduces Epicurean canon, physics, and ethics, although the focus is mainly on the physics. The work marks a period of expansion, when Epicurean philosophy was adopted by speakers of Latin, and translated and adapted to a new audience.

I wish to thank Marcus for helping me to edit the links on this collection, and Nathan for sharing many of his own DRN study notes with me.

Essays:

Introduction to Lucretius – John R. Porter

Book I

Lucretius begins by invoking Venus, the embodiment of Pleasure, “The Guide of Life”. He goes on to discuss the sacrificial death of Iphianassa and the dangers of religion, and introduces Epicurus as a culture hero and Promethean Savior of humankind whose doctrines save us from the evils of superstition and lead to a life filled with pleasure. Thanks to his Doxai, religion is trampled beneath our feet, making us heaven’s equals.

1-49 Invocation to Venus

62-79 In praise of Epicurus

NOS EXAEQVAT VICTORIA CAELO. (I:67) “by [Epicurus’] victory we reach the stars.” (Humphries)

…QUOD CONTRA SAEPIVS ILLA RELIGIO PEPERIT SCELEROSA ATQVE IMPIA FACTA. (I:70-71) “More often has religion itself | Given birth to deeds both impious and criminal.” (Melville)

80-101 Sacrifice of Iphianassa

TANTVM RELIGIO POTVIT SVADERE MALORVM. (I:89) “So great the power religion had for evil.” (Melville)

102-148 Against superstition; on why we should study nature

149-237 First law of nature: nothing comes from nothing; Second law: nature breaks all things into their atoms, nothing dies off to nothing

NVLLAM REM E NIHILO GIGNI DIVINITVS VMQVAM. (I:150) “nothing ever springs miraculously out of nothing.” (Smith)

NIL POSSE CREARI DE NIHILO (I:155-156) “nothing can be created out of nothing.” (Smith)

Meleta:

Law of Conservation (Wikipedia)

238-264 First elements are indestructible

329-369 density of bodies varies due to the existence of void

418-448 All nature is atoms and void

440-448 a body “acts or is acted upon” — this is treated as an ontological criterion for whatever exists, also in Epicurus’ Letter to Herodotus

449-458 Properties and accidents

Meleta:

Emergence – Wikipedia

Emergent Properties – Stanford Encyclopaedia of Philosophy

459-463 Time is an accidental property 

483-564 Atoms are eternal and solid; bodies are also made up of molecules or combinations or atoms

565-599 Hard and soft bodies

600-634 Primal elements are indestructible

635-704 Against Heraclitus

Meleta:

Various refutations against the other philosophers between I.635-1113 (thank you, Nathan):

Heraclitus, Zeno – Fire
Thales – Water
Anaximander – Apeiron (infinity)
Anaxamines – Air
Anaxagoras – Homoiomereia
Xenophanes – Earth
Empedocles – “The Four Elements”
Pythagoras – Numbers

705-797 Against Empedocles and others

798-829 Compound bodies

830-920 Against Anaxagoras

951-1020 The universe is infinite, ergo prime bodies are always moving

1009-1013 atoms and void are forever bound to each other, ergo there is a space-time-matter continuum

Meleta:

What is Space-Time? – from Nature.com

The Nature of Space and Time – Scientific American

1021-1034 Randomness of particles

1035-1051 Infinite matter

1052-1117 The universe has no center

NAM MEDIVM NIHIL ESSE POTEST INFINITA (I:1070-1071) “There can be no centre in infinity.” (Latham)

Meleta:

Venus Over Mars

 Mahsa Amini: the new Iphianassa

Hermarchus’ 22 Books on Empedocles

Book II

Lucretius continues giving a basic overview of a particle-based cosmology. DRN is likely based on Epicurus’ 37 books On Nature. Here, we are presented with the Lucretian account of the doctrine of innumerable worlds, and with how nature does all things without gods ruling over her.

1-19 Philosophy is a fortress of the wise

20-46 Pleasure is easy to acquire (Principal Doctrine 3)

47-61 Science saves us from superstition

OMNIS CVM IN TENEBRIS PRAESERTIM VITA LABORET? (II:54) “…when the whole of life is but a struggle in darkness?” (Bailey)

62-141 Matter in motion

142-183 Speed of particles

184-215 Direction of motion of particles

216-237 The swerve

238-250 Matter travels at set speed in void

251-293 Against determinism

294-307 Laws of physics always the same

308-332 Microscopic motion happens

Meleta:

Brownian Motion – Wikipedia

333-521 Different kinds of particles

522-568 Endless particles

569-580 Growth and entropy

581-599 Different kinds of particles

Meleta:

Elementary and Composite Particles – Wikipedia

Periodic Table of the Elements – Wikipedia

600-643 Great Goddess / Mother Earth

644-660 The nature of the gods

661-729 Possible atom combinations 

730-841 Colors

842-864 Primary particles lack smell

865-943 Primary particles lack sensation

944-962 Hard blows numb sensation

963-989 Pain and Pleasure

990-1022 Cycles of death and renewal

CAELESTI SVMVS OMNES SEMINE ORIVNDI (II:991) “We all have come from heavenly seed.” (Humphries)

CEDIT ITEM RETRO, DE TERRA QUOD FVIT ANTE, IN TERRAS… (II:991) “What once sprung from earth sinks back into the earth.” (Bailey)

1023-1076 Doctrine of innumerable worlds

Meleta:

Exoplanets – Wikipedia

Exoplanet Exploration – NASA

1077-1089 Nature makes multiple samples

1090-1104 Gods do not rule over nature

1105-1143 Growth and decay

1144-1174 The universe has an end

Meleta: Lucretian Parable of the Alphabet

Book III

At the opening of DRN, Lucretius tells us that one of his goals in the poem is to shed light on the nature of the mortal soul in order to exorcise fear of death. Liber Tertivs focuses on this task, and argues that the study of nature provides the cure for this fear. The poet personifies Nature and makes her counsel man to leave this life satisfied at the time of death as one who has enjoyed all the delicacies of a banquet. 

Meleta:

Study Guide for the Epicurean canon

1-30 Invocation to Epicurus

31-93 Fear of death

Meleta:

The Denial of Death and the Practice of Dying – ErnestBecker.org

Cross-Reference: Yang Zhu, Chapter 3 of Liezi

94-369 On the nature of soul and mind

370-395 Soul is scattered throughout body

396-416 Mind is more vital than soul

417-547 Soul and mind are mortal

MORTALEM TAMEN ESSE ANIMAM FATEARE NECESSE (III:543) “you must admit the soul to be mortal” (Munro)

548-677 Soul dies if body dies

678-829 Soul is inside the body

830-869 Leave life as if leaving a banquet

NIL IGNITVR MORS EST AD NOS (III:831) “Death, therefore, to us is nothing” (Munro)

870-1094 Against fear of afterlife

VITAQVE MANCIPIO NVLLI DATVR OMNIBVS VSV (III:972) “No one is given life to own; we all hold but a lease.” (Stallings)

Cross References:

Yang Zhu, Book 7 of Liezi, Chapter 11

The Despisers of the Body, Nietzsche, in Thus Spake Zarathustra, IV

Meleta:

Passages on the Soul, from Epicurus’ Epistle to Herodotus

A Concrete Self

Some Thoughts on the Soul

Book IV

Liber Qvartvs focuses on the canon (the “measuring stick” or “standard” of truth), and on the importance of trusting the using our senses and our faculties. This was mainly a critique of the Sceptics, who taught that knowledge was neither possible nor desirable.

1-25 Poetry sweetens philosophy

34-268 Explanation of photons (eidolon)

125 Foul odors are cited as proof that tiny unseen particles exist

154 The wave function of light particles is mentioned: “simulacra redundent”, bodies emit images to us ‘wave on wave”

175 On the speed of light

205 Considers the lack of density in outer space

221 The air is ever filled with winged words: “variae cessant voces volitare per auras”

269-352 The case study of mirrors

E TENEBRIS AVTEM QVAE SVNT IN LVCE TVEMVR (IV:338) “Now we see out of the dark what is in the light” (Diderot’s motto in Philo. Tho. 1746)

353-364 Seeing objects from a distance

Meleta:

Scientific names of the various types of “illusions” Lucretius describes in IV.338-463 (thank you, Nathan):

Dark Adaptation (338-353), Distance Illusion (354-364), Beta Movement, and shadows as evidence that light waves are blocked (365-379), Induced Movement (388-391, 421-426, 444-447), Parallax (392-397), Vanishing Point (398-400, 433-436), Vertigo (401-404), The “Moon” Illusion (405-414), Entasis (427-432), Refraction of Light (437-443), Diplopia (“Double-vision”) (448-453), Dreams/Dreaming at Night (454-463)

379-466 Eyes are trustworthy; recognition of perspective

Nothing is harder than separating truth from the hasty, hazy additives of the mind. – Liber Qvartvs, 467-8

Since thus far they’ve seen no truth, how can they know what “know” and “not-know” mean, what thing creates the concepts “false” and “true”, what proves the dubious different from the sure? You’ll find the concept “truth” was first created by the senses, nor can we prove the senses wrong. – Liber Qvartvs, 474-8

467-521 Trusting the senses; 479 Senses can’t be proven wrong; 486-496 Each faculty is independent within the canon; 505 Parable of the building foundation

PROINDE QVOD IN QVOQVEST HIS VISVM TEMPORE VERVMST. (IV:500) “Therefore all sensations at all times are true.” (Smith)

522-614 On the nature of sound waves; 571 On echo

615-632 On the nature of taste

633-672 Animals have different senses

UT QVOD ALIIS CIBVS EST ALIIS FVAT ACRE VENENVM (IV:638) “What’s food for one is poison for another.” (Esolin)

673-721 On the nature of smell; 700 Odors can’t cross walls and boundaries that sound is able to cross, ergo sound is more subtle, and smells easily dissipate

722-822 Photons in the air (posited as a possible explanation for dreams and visions)

823-857 Against natural design, and against teleology in Darwinian evolution

858-876 Hunger and Thirst

877-986 On bodily movement

976 Mentions neural pathways

987-1029 On sleep

1030-1057 Human semen, “the wound of love” and criticism of passionate love, which makes men lose their wealth and their mind

1058-1287 Sexuality and sterility; includes in 1217-1236 the assertion that babies bear the seed of both father and mother, and inherit traits from both sides

… EST COMMUNIS VOLVPTAS (IV:1209) “…sexual pleasure is shared” (Smith)

1260 Food affects our “seed”

Meleta:

Three Lucretian Arguments Against Creationism

Diogenes’ Wall: Who will Choose to Seek What he can Never Find?

On the Canon: Enargeia and Epilogismos; Studying the Canon

Book V

Liber Qvintvs is the most complete extant epitome of Epicurean anthropology. It gives natural explanations for natural and cultural phenomena that ancients used to attribute to the gods. Instead, here nature invents new faculties or powers, and men later perfect their use through culture and habit. It is in this book that Lucretius takes us to the innumerable worlds by depicting a great battle taking place in space.

1-90 In honor of Epicurus

AT BENE NON POTERAT SINE PVRO PECTORE VIVI (V:18) “But a good life could not be lived without a pure mind” (Smith)

91-125 The Earth will also end

Meleta:

When will the Earth come to an end? – Big Think

How will life on Earth end? – Astronomy.com

126-145 Mind can only exist in the body

146-155 The gods are physical

156-194 The gods did not create the world

195-234 Flaws in nature show no design 

235-323 Matter is constantly recycled

324-379 Age of the Earth

380-415 How elements affect each other

416-470 How the Earth formed; 437-440 anticipates the modern scientific proposition of the Nebular Hypothesis

Meleta:

Accretion – Wikipedia

471-479 How the Sun and Moon formed

480-494 The land and sea

495-508 The aether / atmosphere

509-563 The motion of the stars and Earth

564-613 The size of the Sun and Moon

614-750 Motion of the Sun and Moon

751-779 Eclipses

780-836 When the Earth was young

NAM NEQVE DE CAELO CECIDISSE ANIMALIA POSSVNT (V:793) “Certainly living creatures cannot have dropped from heaven” (Smith)

… OMNIA MIGRANT (V:830) “…everything is in flux” (Smith)

837-854 Earth produced imperfect beings

855-877 Survival of the fittest

878-924 Animals belong to a single species

925-1010 Early humans

1011-1027 Origin of families and homes

Meleta:

Nathan notes: 1000-1288 in Book V use SEMINA explicitly refer to human male ejaculate fluid, thus, creating a fundamental poetic comparison between the generation of the Earth and the generation of a Child, both of which are composed of clumps of eternal matter that get entangled while falling through the void, both of which lead to inextricably vast complexity, coming from simple, primordial seeds.

1028-1090 Origin of language

1091-1104 Invention of fire

1105-1160 First towns founded

1161-1193 Origin of religion

1194-1240 The dangers of religion

1241-1286 Discovery of metalwork

1287-1349 How metals increased warfare; 1283-1296 anticipates Christian Jurgensen Thomsen’s “Three-Age System” of the “Stone” Age, “Bronze” Age, and “Iron” Age.

1350-1360 Fabrics for clothing

1361-1378 Farming

1379 … Singing and music

Meleta:

Liber Qvintvs

Naturalist Reasoning on Friendship

On the Intersection Between Science Fiction and Epicurean Philosophy

Lucretius on Iron and War

Better be a Subject and at Peace

Book VI

Lucretius continues giving natural explanations for natural phenomena that sometimes inspired fear-based beliefs in people. The final book includes the parable of the punctured jar, which illustrates the salvific power of philosophy. While some have argued that De rerum natura is an incomplete work, Michel Onfray calls our attention to the fact that the first book begins with a discussion of the creative powers of the Mother (nature), and the sixth and final book ends with a discussion of death.

1-42 In praise of Epicurus

43-95 Against fear-based belief

96-163 The nature of thunder

164-218 Sounds moves slower than sights; 164-166 both light and sound have finite speeds, and light moves more quickly than sound 

219-238 Lightning fires

239-299 How lightning originates

300-322 Wind can carry fire

323-422 The nature of lightning

423-534 Waterspouts

535-607 The nature of earthquakes; (Nathan says: I think lines VI.587-588 explicitly refer to the earthquake/tsunami that destroyed Helike in 373 BCE “near Aegium on the Peloponnesian” side of the Gulf of Corinth.)

Meleta:

Happy Twentieth: Liber Sextvs, on Harmful Beliefs

Plate tectonics – Wikipedia

608-638 The nature of the ocean

639-711 The nature of volcanoes; (Nathan says: the eruption of Etna referred to in VI.641 seems to refer to the eruption in 122 BCE that destroyed the Sicilian city of Catania.)

712-737 The river Nile

738-768 Avernian lakes

OMNIA QUAE NATURALI RATIONE GERUNTUR (VI:762) “All these phenomena are produced by the operation of nature” (Smith)

769-839 Toxic substances

840-905 Water in wells

906-1089 The nature of magnets

1090-1137 The nature of diseases

1138 … The plague in Athens; (Nathan adds context: the Plague of Athens (430 BCE) killed 25% of the population, between 75,000 and 100,000)

Additional Notes

List of literary figures who allude to or have adopted or been influenced by DRN directly (thank you, Nathan!):

Bacon, Bergson, Botticelli, Chaucer, Deleuze, Descartes, Diderot, Dryden, E. Darwin, Freud, Frederick II, Galileo, Gassendi, Goethe, Thomas Gray, Holbach, Hobbes, Horace, Hume, Jefferson, Kant, Locke, La Mettrie, Lord Byron, Marx, Melville, Milton, Machiavelli, Nietzsche, Newton, Pope, Rousseau, Shakespeare, Shelley, Spenser, Spinoza, Santayana, Tennyson, Virgil, Whitman, Wordsworth

 

Meleta:

The Punctured Jar Parable

The Method of Multiple Explanations

The Ethics of a Quarantine

Lucretius’ Apocalyptic Imagination, by Alessandro Schiesaro

Essays and Books on Lucretius:

The Epicureanism of Lucretius – Tim O’Keefe

Metaphor and Argumentation in Lucretius – Matthew Johncock

Predicting Modern Science: Epicurus vs. Mohammed