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On the Nature of Things

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On the Nature of Things



 
 
argued (among many things) that everything in the universe is composed of tiny atoms moving about in an infinite void, rather than being the creation of deities as was common belief.]]

De rerum natura is a first century BCE poem by the Roman
Roman Republic

The Roman Republic was the phase of the Ancient Rome characterized by a republican form of government; a period which began with the overthrow of the Roman Roman Kingdom, c....
 poet
Poet

A poet is a person who writes poetry....
 and philosopher Lucretius
Lucretius

Titus Lucretius Carus was a Roman Republic poet and philosopher. His only known work is the epic philosophical poem on Epicureanism De rerum natura, translated into English as On the Nature of Things....
 with the goal of explaining Epicurean philosophy to a Roman audience. The poem is divided into six books, and concentrates heavily on Epicurean physics.






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argued (among many things) that everything in the universe is composed of tiny atoms moving about in an infinite void, rather than being the creation of deities as was common belief.]]

De rerum natura is a first century BCE poem by the Roman
Roman Republic

The Roman Republic was the phase of the Ancient Rome characterized by a republican form of government; a period which began with the overthrow of the Roman Roman Kingdom, c....
 poet
Poet

A poet is a person who writes poetry....
 and philosopher Lucretius
Lucretius

Titus Lucretius Carus was a Roman Republic poet and philosopher. His only known work is the epic philosophical poem on Epicureanism De rerum natura, translated into English as On the Nature of Things....
 with the goal of explaining Epicurean philosophy to a Roman audience. The poem is divided into six books, and concentrates heavily on Epicurean physics. It deals with the principles of atomism
Atomism

In natural philosophy, atomism is the philosophical theses that was theoryzed by Leucippus in the fifth century BC. For it all the objects in the universe are composed of very small, indestructible building blocks ? atoms ....
; the nature of the mind
Mind

Mind refers to the aspects of intellect and consciousness manifested as combinations of thought, perception, memory, emotion, free will and imagination, including all of the brain's conscious and unconscious cognitive processes....
 and soul
Soul

In many religions and parts of philosophy, the soul is the immaterial part of a person. It is usually thought to consist of one's thoughts and Personality psychology, and can be synonymous with the spirit, mind or self....
; explanations of sensation
Sensation

Sensation is the Fiction-writing modes for portraying a character's perception of the senses. According to Ron Rozelle, ?. . .the success of your story or novel will depend on many things, but the most crucial is your ability to bring your reader into it....
 and thought
Thought

Thought and thinking are mind Theory of forms and processes, respectively Thinking allows beings to model the world and to deal with it according to their goal, plans, ends and desires....
; the development of the world
World

World is a common name for the planet Earth seen from a human worldview, as a place inhabited by human beings. It is often used to signify the sum of human experience and history, or the 'human condition' in general....
 and its phenomena; and explains a variety of celestial
Celestial sphere

In astronomy and navigation, the celestial sphere is an imagination rotation sphere of "gigantic radius", concentric spheres and coaxial with the Earth....
 and terrestrial
Earth

Earth is the third planet from the Sun. Earth is the largest of the terrestrial planets in the Solar System in diameter, mass and density. It is also referred to as the World and Wiktionary:Terra.Note that by International Astronomical Union convention, the term "Terra" is used for naming extensive land masses, rather...
 phenomena. The poem grandly proclaims the reality of our role in a universe
Universe

The universe is defined as everything that physically exists: the entirety of space and time, all forms of matter, energy and momentum, and the physical laws and physical constants that govern them....
 which is ruled by chance
Randomness

Randomness is a lack of order, purpose, Causality, or predictability. Randomness as defined by Aristotle is the situation, when a choice is to be made which has no logical component by which to determine or make the choice ....
, with no interference from gods. It is a statement of personal responsibility in a world in which everyone is driven by hungers and passions with which they were born and do not understand.

Synopsis


Literally, the title translates as On the Nature of Things. The title is sometimes translated as On the Nature of the Universe, perhaps in order to reflect the scale of its subject matter. Lucretius' view is austere, but nevertheless he points out that a few enlightened
Enlightenment (concept)

Enlightenment broadly means wisdom or understanding enabling clarity of perception. However, the English language word covers two concepts which can be quite distinct: religion or spiritual enlightenment and secular or intellectual enlightenment....
 individuals can escape periodically from their own hungers and passions and look down with compassion on poor humanity, including themselves, who are on average ignorant, unhappy, and yearning for something better than what they see around them. Personal responsibility then consists of speaking and living personal truth.

Accordingly, On the Nature of Things is Lucretius' personal statement of truth to an ignorant audience. He hopes that someone will hear, understand, and pass on a seed of truth to help improve the world.

Lucretius wrote this epic poem to "Memmius", who may be the Gaius Memmius
Gaius Memmius (poet)

Gaius Memmius , Roman Empire orator and poet, tribune of the people , friend of Lucretius and Catullus.At first a strong supporter of Pompey, he quarrelled with him, and went over to Julius Caesar, whom he had previously attacked....
 who in 58 BC was a praetor
Praetor

Praetor was a Title#Titles_for_heads_of_state granted by the government of Ancient Rome to men acting in one of two official capacities: the commander of an army, either before it was mustered or more typically in the field, or an elected Magistratus assigned duties that varied depending on the historical period....
, a judicial official deciding controversies between citizens and between citizens and the government. There are over a dozen references to "Memmius" scattered throughout the long poem in a variety of contexts in translation, such as "Memmius mine", "my Memmius", and "illustrious Memmius". Apparently, Lucretius wrote On the Nature of Things in an attempt to convert Gaius Memmius to atomism, but was unsuccessful.

Contents

The poem opens with a magnificent invocation
Invocation

An invocation may take the form of:*Supplication or prayer.*A form of Spirit possession.*Command or conjuration.*Self-identification with certain spirits....
 to Venus
Venus (mythology)

Venus was a major Roman mythology goddess principally associated with love, beauty and sexual reproduction, the equivalent of the Greek mythology Aphrodite....
, whom he addresses as an allegorical representation of the reproductive power, after which the business of the piece commences by an enunciation of the great proposition on the nature and being of the gods
Gods

Gods as the plural of god , is a synonym of "deity", indicating a context of polytheism.* God * Goddess* List of deitiesproper names...
, which leads to a grand invective against the gigantic monster religion
Religion

A religion is an organized approach to human spirituality which usually encompasses a set of myth, symbols, beliefs and practices, often with a supernatural or transcendence quality, that give meaning to the practitioner's experiences of life through reference to a higher power or truth....
, and a thrilling picture of the horrors which attends its tyrannous sway. Then follows a lengthened elucidation of the axiom
Axiom

In traditional logic, an axiom or postulate is a proposition that is not proved or demonstrated but considered to be either self-evidence, or subject to necessary decision....
 that nothing
Nothing

Nothing is a concept that describes the absence of anything at all. Colloquially, the concept is often used to indicate the lack of anything relevant or significant, or to describe a particularly unimpressive thing, event, or object....
 can be produced from nothing, and that nothing can be reduced to nothing (Nil fieri ex nihilo, in nihilum nil posse reverti); which is succeeded by a definition of the Ultimate Atoms
Atomism

In natural philosophy, atomism is the philosophical theses that was theoryzed by Leucippus in the fifth century BC. For it all the objects in the universe are composed of very small, indestructible building blocks ? atoms ....
, infinite in number, which, together with Void Space (Inane), infinite in extent, constitute the universe
Universe

The universe is defined as everything that physically exists: the entirety of space and time, all forms of matter, energy and momentum, and the physical laws and physical constants that govern them....
. The shape of these corpuscules, their properties, their movements, the laws under which they enter into combination and assume forms and qualities appreciable by the senses, with other preliminary matters on their nature and affections, together with a refutation of objections and opposing hypotheses, occupy the first two books.

In the third book, the general truths thus established are applied to demonstrate that the vital and intellectual principles, the Anima and Animus, are as much a part of us as are our limbs and members, but like those limbs and members have no distinct and independent existence, and that hence soul
Soul

In many religions and parts of philosophy, the soul is the immaterial part of a person. It is usually thought to consist of one's thoughts and Personality psychology, and can be synonymous with the spirit, mind or self....
 and body
Human body

The human body is the entire physical and mental structure of a human organism, and consists of a head, neck, torso, two arms and two legs.By the time the human reaches adulthood, the body consists of close to 10 trillion Cell , the basic unit of life....
 live and perish together; the argument being wound up by a magnificent exposure of the folly manifested in a dread of death
Death

Death is the permanent termination of the biological functions that define a life organism. It refers to both a particular event and to the condition that results thereby....
, which will for ever extinguish all feeling.

The fourth book - perhaps the most ingenious of the whole - is devoted to the theory of the senses, sight
Visual perception

Visual perception is the ability to interpret information from visible light reaching the eye. The resulting perception is also known as eyesight, sight or vision....
, hearing
Hearing (sense)

Hearing is one of the traditional five senses. It is the ability to perceive sound by detecting vibrations via an organ such as the ear. The inability to hear is called deafness....
, taste
Taste

Sorry, no overview for this topic
, smell
Olfaction

Olfaction refers to the sense of smell. This sense is mediated by specialized sensory cells of the nasal cavity of vertebrates, and, by analogy, sensory cells of the antennae of invertebrates....
, of sleep
Sleep

Sleep is the natural state of bodily rest observed in humans and other animals. It is common to all mammals and birds, and is also seen in many reptiles, amphibians and fish....
 and of dreams, ending with a disquisition upon love
Love

Love is any of a number of emotions and experiences related to a sense of strong affection and attachment . The word wikt:en:love can refer to a variety of different feelings, states, and attitudes, ranging from generic pleasure to intense interpersonal attraction....
 and sex
Sex

In biology, sex is a process of combining and mixing genetics traits, often resulting in the specialization of organisms into male and female types ....
.

The fifth book, generally regarded as the most finished and impressive, treats of the origin of the world
World

World is a common name for the planet Earth seen from a human worldview, as a place inhabited by human beings. It is often used to signify the sum of human experience and history, or the 'human condition' in general....
 and of all things that are therein, of the movements of the heavenly bodies, of the changes of the seasons, of day
Day

A day is a units of measurement of time equivalent to approximately 24 hours. It is not an International System of Units unit but it is accepted for use with SI....
 and night
Night

Night or nighttime is the period of time when the sun is below the horizon. The opposite of night is day . Time of day varies based on factors such as season, latitude, longitude and timezone....
, of the rise and progress of humankind, of society
Society

A society is a group of humans characterized by patterns of relationships between individuals that share a distinctive culture and/or institutions....
, and of political institutions, and of the invention of the various arts
ARts

aRts, which stands for analog Real time synthesizer, is an audio framework that is no longer under development. It is most famous for previously being used in KDE to simulate an analog synthesizer....
 and sciences which embellish and ennoble life.

The sixth book comprehends an explanation of some of the most striking natural appearances, especially thunder
Thunder

Thunder is the sound made by lightning. Depending on the nature of the lightning and distance of the listener, it can range from a sharp, loud crack to a long, low rumble ....
, lightning
Lightning

File:Blesk.jpgLightning is an Earth's atmosphere discharge of electricity usually accompanied by thunder, which typically occurs during thunderstorms, and sometimes during volcano or dust storms....
, hail
Hail

Hail is a form of Precipitation which consists of balls or irregular lumps of ice . Hailstones on Earth usually consist mostly of ice and measure between 5 and 150 millimeters in diameter, with the larger stones coming from severe thunderstorms....
, rain
Rain

Rain is liquid precipitation . On Earth, it is the condensation of atmospheric water vapor into droplet heavy enough to fall, often making it to the surface....
, snow
Snow

Snow is a type of precipitation in the form of crystalline water ice, consisting of a multitude of snowflakes that fall from clouds. The process of this precipitation is called snowfall....
, ice
Ice

Ice is a solid phases of matter, usually crystalline solid, of a non-metallic substance that is liquid or gas at room temperature, such as ammonia ice or methane ice....
, cold
Cold

Cold describes the condition of coldness.Cold may also refer to:*Common cold, a type of Upper respiratory tract infection*Chinese_food_therapy#Cantonese_classification_of_food...
, heat
Heat

In physics and thermodynamics, heat is any transfer of energy from one body or thermodynamic system to another due to a difference in temperature....
, wind
WIND

The Global Geospace Science WIND satellite is a NASA science spacecraft launched at 04:31:00 EST on November 1, 1994 from launch pad 17B at Cape Canaveral Air Force Station in Merritt_Island%2C_Florida, Florida aboard a McDonnell Douglas Delta II 7925-10 rocket....
, earthquakes, volcanoes, springs
Spring (hydrosphere)

A spring is a point where groundwater flows out from the ground, and is thus where the aquifer surface meets the ground surface.Dependent upon the constancy of the water source , a spring may be ephemeral or Perennial stream ....
 and localities noxious to animal
Animal

Animals are a major group of multicellular, eukaryotic organisms of the Kingdom Animalia or Metazoa. Their body plan eventually becomes fixed as they develop, although some undergo a process of metamorphosis later on in their life....
 life, which leads to a discourse upon diseases. This in its turn introduces an appalling description of the great pestilence
Epidemic

In epidemiology, an infection that is epidemic appears as new cases in a given human population, during a given period, at a rate that substantially exceeds what is "expected," based on recent experience ....
 which devastated Athens
Athens

Athens , the Capital and largest city of Greece, dominates the Attica periphery; as one of the List of cities by time of continuous habitation, its recorded history spans around 3,400 years....
 during the Peloponnesian war
Peloponnesian War

The Peloponnesian War which lasted from 431-404BC was an Ancient Greece military conflict, fought by Athens and its Athenian empire against the Peloponnesian League, led by Sparta....
, and thus the book closes. The termination being somewhat abrupt, suggests that Lucretius had not finished fully editing the poem before his death.

Arguments

The poem contains the following arguments.

  • Substance is eternal.
    • Atoms move in an infinite void
      Vacuum

      A vacuum is a volume of space that is essentially empty of matter, such that its gaseous pressure is much less than atmospheric pressure. The word comes from the Latin term for "empty," but in reality, no volume of space can ever be perfectly empty....
      .
    • The universe is all atoms and void, nothing else. (Hence, Lucretius' view is labeled as atomism
      Atomism

      In natural philosophy, atomism is the philosophical theses that was theoryzed by Leucippus in the fifth century BC. For it all the objects in the universe are composed of very small, indestructible building blocks ? atoms ....
      .)


  • The human soul consists of minute atoms that dissipate into smoke when a person dies.
    • Gods exist, but they did not start the universe, and they have no concern for humans.


  • Likely there are other worlds in the universe much like this one, likewise composed of changing combinations of atoms.
    • Being mere shifting combinations of atoms, this world and the other worlds are not eternal.
    • The other worlds out there are not controlled by gods any more than this one.


  • The forms of life in this world and in the other worlds change, increasing in power for a time and then losing power to other forms.
    • Humankind went through a savage beginning, and there has been noticeable improvement in skill and ability, but even this world will pass away.


  • People know by either the senses or by reason.
    • Senses are dependable.
    • Reason infers underlying explanations, but reason can reach false inferences. Hence, inferences must be continually verified against the senses.
    • (Compare to Plato
      Plato

      Plato , was a Classical Greece Greeks philosopher, mathematician, writer of philosophical dialogues, and founder of the Platonic Academy in Ancient Athens, the first institution of higher learning in the western world....
      , who believed that senses could be fooled and reason was reliable.)


  • The senses perceive the macroscopic collisions and interactions of bodies.
    • But reason infers the atoms and the void to explain what the senses perceive.


  • People avoid pain and seek what gives them pleasure.
    • The average person then is driven to maximize pleasure while avoiding pain.


  • People are born with two big vulnerabilities for hurt, the fear of gods and the fear of death.
    • But the gods will not hurt you, and death is easy when life is gone.
    • When you are gone, the atoms in your soul and the atoms in your body will still be here making up something else, a rock, a lake, or a flower.


Lucretius's physics


Lucretius maintained that he could free humankind from fear of the gods by demonstrating that all things occur by natural causes without any intervention by the gods. Historians of science, however, have been critical of the limitations of his Epicurean approach to science, especially as it pertained to astronomical
Astronomy

Astronomy is the science of Astronomical object and Phenomenon that originate outside the Earth's atmosphere . It is concerned with the evolution, physics, chemistry, meteorology, and motion of celestial objects, as well as the physical cosmology....
 topics, which he relegated to the class of "unclear" objects.

Thus, he began his discussion by claiming that he would
explain by what forces nature steers the courses of the Sun and the journeyings of the Moon, so that we shall not suppose that they run their yearly races between heaven and earth of their own free will [i.e., are gods themselves] or that they are rolled round in furtherance of some divine plan....


However, when he set out to put this plan into practice, he limited himself to showing how one, or several different, naturalistic accounts could explain certain natural phenomena. He was unable to tell his readers how to determine which of these alternatives might be the true one.

Let us now take as our theme the cause of stellar movements.
  • First let us suppose that the great globe of the sky itself rotates....
  • There remains the alternative possibility that the sky as a whole is stationary while the shining constellations are in motion. This may happen
  • because swift currents of ether ... whirl round and round and roll their fires at large across the nocturnal regions of the sky. Or
  • an external current of air from some other quarter may whirl them along in their course. Or
  • they may swim of their own accord, each responsive to the call of its own food, and feed their fiery bodies in the broad pastures of the sky.
One of these causes must certainly operate in our world.... But to lay down which of them it is lies beyond the range of our stumbling progress.


Drawing on these, and other passages, William Stahl considered that "The anomalous and derivative character of the scientific portions of Lucretius' poem makes it reasonable to conclude that his significance should be judged as a poet, not as a scientist."

Atomism

From a scientific perspective, Lucretius' argument that the visible motion of small particles reveals the impact of atoms anticipates Einstein's quantitative analysis of Brownian motion
Brownian motion

Brownian motion is the seemingly random movement of particles suspended in a liquid or gas or the mathematical model used to describe such random movements, often called a particle theory....
, which was pivotal in the modern acceptance of the reality of atoms.

The swerve

Determinism
Determinism

Determinism is the philosophy proposition that every event, including human cognition and behavior, decision and action, is causality determined by an unbroken chain of prior occurrences. With numerous historical debates, many varieties and philosophical positions on the subject of determinism exist from traditions throughout...
 appears to conflict with the concept of free will. Lucretius attempts to allow for free will in his physicalistic
Physicalism

Physicalism is a philosophical position holding that everything which exists is no more extensive than its physical properties; that is, that there are no kinds of things other than physical things....
 universe by postulating an indeterministic
Indeterminism

Indeterminism is a philosophy position that maintains that some form of determinism is incorrect: that there are events which do not correspond with determinism ....
 tendency for atoms to swerve randomly (Latin: clinamen
Clinamen

Clinamen is the name Lucretius gave to a minimal indeterminacy in the motions of atoms, an unpredictable ?swerve... at no fixed place or time?....
). This reasoning finds modern parallel in the claim that quantum mechanical indeterminism allows for free will. Such appeals to indeterminism to solve the problem of free will are philosophically contentious
Free will

The question of free will is whether, and in what sense, rational agents exercise control over their actions and decisions. Addressing this question requires understanding the relationship between freedom and Causality, and determining whether the laws of nature are causally deterministic....
, since it is not clear why random events should allow for free will any more than should entirely determined events.

Bibliography


Translations

  • Lucretius. On the Nature of Things: De rerum natura. Anthony M. Esolen, transl. Baltimore: The Johns Hopkins Univ. Pr., 1995. ISBN 0-8018-5055-X
  • Lucretius the Way Things Are: The De Rerum Natura. Rolfe Humphries, transl. Bloomington, Indiana: Indiana University Press, 1968. ISBN 0-253-20125-X.
  • Lucretius. On the Nature of the Universe. R. E. Latham, transl. London: Penguin Books, 1994. ISBN 0-14-044610-9.
  • Lucretius. On the Nature of Things (Loeb Classical Library No. 181). W. H. Rouse, transl., rev. by M. F. Smith. Cambridge, Mass.: Harvard Univ. Pr., 1992, reprint with revisions of the 1924 edition. ISBN 0-674-99200-8.
  • Lucretius. On the Nature of Things (Hackett Classics Series). Martin Ferguson Smith, transl. Indianapolis, Ind.: Hackett Publishing Co., 2001. ISBN 0-87220-587-8. (Reviewed at ; responses to the review at )


Commentary


  • Brown, P. Michael (ed.). Lucretius, De Rerum Natura III. Warminster: Aris & Phillips, 1997. ISBN 0-85668-694-8 (hb). ISBN 0-85668-695-6 (pb). (Reviewed at )
  • Campbell, Gordon. Lucretius on Creation and Evolution: A Commentary on De Rerum Natura Book Five, Lines 772-1104. Oxford: Oxford Univ. Pr., 2003. ISBN 0-19-926396-5. (Reviewed at )


of Campbell's book. At page 160, the reviewer concludes the following. "Lucretius on Creation and Evolution offers a bold and sophisticated attempt to come to terms with Lucretius' arguments on evolution in the spirit of the poem's most ambitious commentators. It deserves not only consultation but active perusal. I could not agree more with Campbell's commitment to putting Lucretius
Lucretius

Titus Lucretius Carus was a Roman Republic poet and philosopher. His only known work is the epic philosophical poem on Epicureanism De rerum natura, translated into English as On the Nature of Things....
 and Epicureanism
Epicureanism

Epicureanism is a system of philosophy based upon the teachings of Epicurus , founded around 307 BC. Epicurus was an atomism materialism, following in the steps of Democritus....
 into conversation with the present and with our own attempts to figure out where humans belong in a world of chance and impersonal necessity."


  • Fowler, Don. Lucretius on Atomic Motion: A Commentary on De Rerum Natura, Book Two, Lines 1-332. Oxford: Oxford Univ. Pr., 2002. ISBN 0-19-924358-1. (Reviewed at )
  • Gale,Monica R. Lucretius and the Didactic Epic. London: Bristol Classical Pr., 2001. ISBN 1-85399-557-6 (Reviewed at )
  • Johnson, W.R. Lucretius and the Modern World. London: Duckworth, 2000. ISBN 0-7156-2882-8. (Reviewed at )
  • Kennedy, Duncan F. Rethinking Reality: Lucretius and the Textualization of Nature. Ann Arbor: Univ. of Michigan Pr., 2002. ISBN 0-472-11288-0. (Reviewed at )
  • Sedley, David. Lucretius and the Transformation of Greek Wisdom. Cambridge: Cambridge Univ. Pr., 1998. ISBN 0-521-57032-8. (Reviewed at )


External links

  • Project Gutenberg
    Project Gutenberg

    Project Gutenberg, abbreviated as PG, is a volunteer effort to digitize, archive and distribute cultural works, as founder Michael Hart said "To encourage the creation and distribution of eBooks."....
     e-text of
  • Stanford Encyclopedia of Philosophy
    Stanford Encyclopedia of Philosophy

    The Stanford Encyclopedia of Philosophy is a Open access online encyclopedia of philosophy maintained by Stanford University. The SEP was initially developed with U.S....
     article on Lucretius, with extensive discussion of