Disclaimer: the ideas and opinions presented below are reflective of the author and
may or may not be shared by other members of the Society of Friends of Epicurus.
Epíkouros was not an atomist. (THUD.)
Nor was Dēmókritos. (GASP.)
… now that I have your attention, please excuse the provocative title — forgive my rhetorical provocation, having trespassed against the taxonomical conventions of academic tradition. I seek to provide nuance to your understanding of the teachings of Epíkouros, and to challenge the academic presentation of atomism as it has been so conceived. We will do so by privileging the perspective of a sweaty, 3rd-century Athenian and by providing critical context to supplement our understanding (we being students who are subject to the prejudices of modernity). We have been trained to catch ’em all, programmed to collect facts like cards. Too often, the presentation of philosophy is like a catalogue of products, each designed by a different manufacturer, each reviewed as a consumer flips the pages of a magazine. Yet Epíkouros did not manufacture sensations. He observed nature, and shared clever inferences. He arrived at his conclusions without the benefit of a vast repository of laboratory evidence.
In a nutshell, if you were an Epicurean in the Garden of Epíkouros (c. 3rd-century BCE), you would have had to have waited several thousand years before anyone called you an “atomist” (or ατομιστής). Prior to the Renaissance era, an Epicurean was just a “student of the Garden” or a “follower of Epíkouros”. The word “atomist” was coined by Renaissance minds in Latin, largely by anti-Epicurean thinkers who dismissed Epicurean particle physics as a silly fiction. The closest title I have found was employed by Athenaios in the 3rd-century CE (Deipnosophistaí 5.4) as προφήτας ἀτόμων (prophḗtas atómōn, meaning, literally, “prophets of atomic” particles). Here again, we find “of atoms” in a substantive, adjectival phrase, not as a proper noun. As a result, I wish to present an alternative lexicon that avoids the neologisms of our opponents.
Now, obviously the Hegemon teaches us that observable bodies are composed of atomic “particles” (and void, impressively anticipating the surprising conclusion of Rutherford’s gold foil experiment by over 2,200 years, demonstrating that solid objects are, generally speaking, about 0.01% stuff and 99.99% space). Nonetheless, the distinctions implied by words like “atoms” and “atomism” create slight incongruities that either warp Epíkouros’ description of particles, or else, beg misunderstandings as a result of sleepy translations and clumsy semantics.
What’s in a Name?
Consider the fact that (so far as I have found) history does not document ancient proponents of particle physics as having referred to the “pieces” of reality by the plural noun άτομα (átoma, or “atoms”), nor any declension of the singular noun άτομο (átomo, or “atom”). This root compound “a-” and “témnō” is only ever found as an adjective ἄτομος (átomos, or “uncuttable”). Ancient texts do not record students of particle physics as having identified themselves by the proper noun ατομιστής (atomistḗs, or “atomist”), nor as having codified their doctrines using the word ατομισμός (atomismós, or “atomism”). Epicureans did not see themselves as “atomists” attached to a theory of “atomism”, so much as adherents of the “true philosophy”, which understood the origins of “the real” world to be “atomic”. Of course, please NOTE: we do find the adjectival phrase ὁ ἄτομος (hó átomos, or “the atomic” body) and its various declensions throughout Epicurean texts. This substantive phrasing [article + adjective] implies a noun. Thus, translating hó (“the”) átomos (“atomic”) as “the atom” is not unreasonable, nor inappropriate. Simply, I find it to be incomplete, and potentially-misleading. We miss an opportunity to expand our mental aggregate by reducing the swerving objects of Epicurean physics to mere “atoms”.
Cuttable Uncuttables
As it must seem ironic to students of Greek, the modern world refers to cuttable elements (like uranium) as “uncuttables”. Further complicating things, the Standard Model refers to the truly uncuttable bodies from which “uncuttables” are composed using the Latin prefix “sub-”, thus, framing “sub-atomic” particles as being (ironically) “under the [cuttable] uncuttables”. Historically, we inherit this irony as a vestige of the modern quest to identify the truly “uncuttable” components of nature. Scientists after the Renaissance assigned the atomic compounds they discovered with the allusive title of “atoms” (or “uncuttables”). Yet, as has been (unforgettably) demonstrated for just over eight decades, the modern “uncuttables” are actually, horrifyingly cuttable. Ancient “uncuttables”, however, were truly indivisible, and could not be split.
Of course, this nuance does not, in any way, invalidate ancient atomic theory. Simply put, ancient Epicureans did not imagine “atomic parts” the same way we imagine “hydrogen” and “oxygen” (as opposed to a correctly-named “lepton” which meets the “uncuttable” qualification). Granted, Epíkouros’ speculations were not infallible, and he sometimes assigns particles with an agency that properly belongs to “molecules” (as when he proposes that we are able to “smell” particles (10.53); in fact, we smell collections of particles “enlaced” as chemical “compounds”). Nonetheless, these naturalistic propositions were deeply insightful, and functionally useful prior to the innovations of the 19th and 20th-centuries. Excitingly, modern physics provides modern Epicureans with the necessary, experimental evidence that is required (from the variety of explanations that Epíkouros provides, in accordance with his practice of entertaining multiple explanations prior to experimental confirmation) to eliminate false hypotheses, and to adopt coherent alternatives. No doubt, had the Hegemon (somehow) extended his lifespan (by a few, measly millennia), he would have welcomed the evidence that supports our discoveries, all of which are consistent with his explanation for the non-supernatural origins of reality.
Body-and-Voidism
New followers of the true philosophy may be further mislead by the word “atomism” as Epíkouros, unlike Dēmókritos, rejected the reductive description of nature. Dēmókritos assumes that everything is “just” particles, for “atoms and the vacuum were the beginning of the universe; and that everything else existed only in opinion” (Laértios 9.44). From the Democritean perspective, what “truly” exists are microscopic bodies (and void). As a result, he concludes that we cannot be certain that our perceptions of bodies and their emergent qualities (like “color”) can be considered “true” because the “true” nature of reality (according to Dēmókritos) occurs at the atomic level — only atoms are “real”. Dēmókritos “rejects” emergent “qualities” that arise from atomic interactions: “Of a truth we know nothing, for truth is in a well.” (Ibid., 9.71).
Epíkouros rejects this skepticism. From the Epicurean perspective, what “truly” exists are bodies and void, some of which are visible, enlaced bodies (i.e. “compounds”) and some of which are invisible, simple bodies (i.e. “particles”). Both “compound bodies” and “simple bodies” are “real” (just as compound notions in the mind are physically “real” as images). As Epíkouros writes, “all” of our sensations are reliable. Consequently, even if we are to adopt the “ismizing” of the humanists, it is reasonable to suppose that, simply, “bodyism” (or “matterism”) would be appropriate designations for Epicurean particle physic, so much as “atomism” (which might be understood to implicate Dēmókritos’ teaching that only particles are real). Consider also that either attempt (including my flippant one) at neologizing particle physics yields the further implication that only particles (or bodies) are “real”, yet both Demokritos and Epíkouros agree that, indeed, “void” is also a “real” thing; it is simply “intangible” (Ibid., 10.39-40). Therein, it would be just as appropriate to call particle physicists “Voidists”, since they, unlike their many opponents, recognized the existence of empty space. Others, like Aristotélēs, insist that “nature abhors a vacuum” (Physikḗs 4.8). Technically, it would be reasonable to call Demokritos an “Atom-and-Voidist”, or to call Epíkouros a “Body-and-Voidist”. Practically, of course, these are clumsy and redundant neologisms, because the existence of one seems to imply the other. Nonetheless, be not mislead into thinking that the Sage taught that only atoms exist.
…Like Crumbs-of-Carbon and Water
As Diogénēs records, Epíkouros did not see himself as an ally to the tradition of Dēmókritos (Lives 10.4), and may have only temporarily considered himself as such during his youth (Ploútarkhos, Against Kōlõtēs 3). The Hegemon explicitly rebukes Dēmókritos’ philosophy for having been influenced by the skepticism of Dēmókritos’ teacher, Pýrrhōn, founder of Greek skepticism. For Epíkouros, his rejection of Pýrrhōn’s teachings, along with his necessary (and brilliantly modern) innovation of the παρέγκλισις (parénklesis, or CLINAMEN, “swerve”) places the Garden in a completely different category than the school of Dēmókritos. Grouping the two of them together, as philosophical allies, is a paradigm defended by ancient opponents of the Epicurean tradition and modern academics. So I argue, if, again, we are willing to entertain the anachronistic fantasy of ancient Epicureans adopting the Latin convention of “ismizing”, then Epíkouros would not have seen his physics as being the same “-ism” as Dēmókritos. It is reasonable to entertain the possibility that “sensualism” or “realism” (if someone puts a gun to our head and forces us to employ an “-ism”) are more reflective and complete expressions of Epicurean physics than “atomism”; and while Epíkouros does meet the criterion for our modern definition of an “atomist”, he did not see himself as such. Indeed, he reserved a collection of slurs for Dēmókritos, the so-called “Authority on Nonsense” (Diogénēs Laértios 10.8).
To my fellow Epicureans, I encourage you to challenge the paradigm that ancient philosophers who defended particle physics should be placed in the same category. In fact, their physics differed. (For a thorough comparison on the two physics, please set aside a few hours to read “The Difference Between the Democritean and Epicurean Philosophy of Nature”, the doctoral dissertation of Karl Marx. In particular, if you have a negative, political opinion of Marx, you may find yourself charmed by his encyclopedic knowledge of ancient, Hellenistic philosophy. Ultimately, he expresses sympathy for Aristotélēs … that is another topic for another essay).
Pieces of Reality
Sure, “atoms” is cool … but what about “seeds”, “grains”, “firstlings”, or “hooklets”? Have you thought about simple “splinters”, “cents” of consciousness, or “motes” of matter? Each of these expressions are employed by Epíkouros in his Epistle to Herodotos as alternative names for the bodies that are popularly identified as “atoms” (orchestrated more colorfully elsewhere). Yet, nowhere in ancient writings does the Hegemon explicitly name particles as “atoms”, only descriptively as uncuttable parts: Epíkouros only employs the adjective ἄτομος (átomos, or “uncuttable”, as in “the uncuttable” pieces of reality). While the substantive phrase ὁ ἄτομος (hó átomos, or “the uncuttable”) implies a noun, it does not provide a noun.
Even then, note that, based on the frequency with which each word is employed in the extant texts, the Hegemon only occasionally refers to the smallest pieces of tangible reality as being “uncuttable”. As many times as Epíkouros describes the fundamental pieces of reality as being “uncuttable”, he equally refers to them as being “countless”, “microscopic”, and “unchanging”. Just as easily as we have coined the contemporary neologism “atom”, we could have, consistent with linguistic conventions, conceived of a “particle” as an “apeiron“ (from ἄπειρος, Laértios 10.41-43, 45 56-57, 60), “micron” (from μικρός, Ibid., 10.59, 61), or “ametableton” (from αμετάβλητος, Ibid., 10.41). Each of these neologisms is as accurate (or inaccurate) as “atom”.
Of historical note, several words that Epíkouros employs when naming the microscopic pieces of reality have been preserved and functionally repurposed, having been enlisted in the service of contemporary physics. Indeed, the ancient words “photon” and “lepton” survived the turbulence of history and became codified into the jargon of modernity. We receive “lepton” from λεπτομερὲς (leptomerès), derived from λεπτός (leptós, or “fine–grained”, “refined”, “subtle”, “minute”) and μέρος (méros, or “part”, “component”, “portion”, “particle”)—meaning “small particles”, “minute motes”, or “fine grains”. A modern “lepton” is a class of particle in the Standard Model that includes the electron. Similarly, we receive “photon” from the ancient Greek φωτός (phōtós, meaning “of light“). This is the particle that carries the electromagnetic force. In both cases, the particles are sub-atomic, and cannot be further divided into parts.
Epíkouros properly names these bits of matter σπερμά (spermá, “seeds”), ᾰ̓ρχαί (ărkhaí, “beginnings” or “firstlings”), σώματα (sṓmata, “bodies”), ὄγκοι (ónkoi, “hooks”), τομαί (tomaí, “splinters”), λεπτομερής (leptomerḗs, “particles” or “fine parts”), λεπτοί (leptoí, “cents”), μόρια (mória, “motes”), and, most often, μέρη (mérē), meaning “parts”, “pieces”, or “particles”.
Uniquely, Epíkouros uses both the plural adjective a-tomoi (or “uncuttable” crumbs) as well as its opposite, τομὴν (tomḗn, Laértios 10.56) meaning “cutting” (as in a “cutting” of wood), or also, a “stump”, “splinter”, or “shedding”. It is employed by Epíkouros as a synonym for the “particles” that comprise creation; it is derived from the verb τέμνω (témnō) meaning “to cut”, “hew”, “butcher” or “sacrifice”. It is also the root of “a-tom”. Herein, Epíkouros employs the image of wood clippings from a tree as an analogy for the minute motes of matter spread through the multiverse. Epíkouros describes particles as “cuttings” that are, themselves, “uncuttable”, so we may just as easily call Epíkouros a “tomist” so much as an “a-tomist”. Here again, Epicurean physics employs analogical reasoning that relies upon visible phenomena. His method does not require abstract vocabulary, only imagery. Primarily, Epíkouros infers that visible phenomena results from invisible beginnings. The “firstlings” of physics are not expressed as contemporary, mathematical objects — the Sage of the Garden calls them “motes” like dust in a beam of sunlight, like “grains” of cereal, like fluffy “hooklets” from dandelions, like “cents” of money, and “splinters” of wood. They are “countless”, “unchanging”, “infinite”, and “microscopic”.
Particles were so much more than merely being “uncuttable”.
The Prejudice of the Enlightment
In addition to these observations, note that Enlightenment-era thinkers like Descartes, Boyle, Newton, and Locke, those who loosely adopted the general notion of particle physics, popularly rejected the Greek designation of “atomist” (as one who accepts the doctrine of “atoms”) in favor of their preferred, Latin term “corpuscularian”, one who studies “corpuscules” (from the Latin CORPVSCVLVM meaning “small body”). This designation was partially made as a defense of piety, partially as a rejection of the “godless” and “immoral” behavior of Libertines (themselves, inspired by Epíkouros), and partially as a means of distinguishing their observations as being unique and unprecedented. The words employed by 17th-century thinkers to refer to particles were loaded with assumptions and prejudices. Many of these thinkers associated “atomism” with other, controversial positions, like “atheism” (despite the fact that all brands of ancient “atomists” rejected atheism). Additionally, the particle physics of some of these thinkers was mechanistic, and conflicted with the non-deterministic spirit of Epicurean ethics.
(For a much more thorough, accurate, and expansive treatment of the context of the debate between “corpuscularianism” and “atomism” as contextualized in the 17th-century, please see the first two chapters of Dr. Catherine Wilson’s book Epicureanism at the Origin of Modernity).
Even in the last few centuries, naturalists, having recognized the coherence of particle physics, have defined and redefined “atomism” according to their own preferences and prejudices, as well as by the misunderstandings they adopted about ancient history, and the social pressures they inherited from the societies that coerced them. On one hand, thinkers like Dēmókritos, Epíkouros, Galileo, Descartes, Boyle, Locke, and Einstein each flirted with general “atomism”; on the other hand, each thinker, more often than not, rejected having their own physics subsumed within the same ismistic grouping as their opponents. They did not necessarily identify as members of the same “-ism”, and often distinguished themselves as philosophical opponents.
In any case, be real and think big about history.
Big Diction Energy
Do not mistake my thesis — I do not mean to suggest that, given modern jargon, as employed by scholars of “philosophy”, Epíkouros should be identified as a “non-atomist”, or as an opponent to ”atomism”. (I recognize that this deconstructive approach risks obfuscation, so forgive me for beleaguering these post-structuralistic points.) Nevertheless, within our fellowship, speaking frankly, I observe that we can be considered “apeironists”, “micronists”, and “ametabletists” just as readily as “atomists”. Concurrently, Epicurean “particles” can be accurately expressed as “apeirons”, “microns”, and “ametabletons”, so much as they are “atoms”.
The ancient Greeks did not practice the convention of “ismizing”, or, as I write, “expressing different systems or processes as ‘-isms’” (see my earlier essay, “On -Isms and Pleasure Wisdom”). Historically, the Ismist paradigm is a result of the widespread adoption of Latin affixation, the ubiquitous “-ISMVS” from the rarely used “-ισμός”. We ismize ideas we detest, (e.g. “Islamism”), we ismize ideas we admire (e.g. “altruism”), and we ismize ancient ideas that never needed ismizing in the first place (e.g. “atomism”). Many of our certainties rest upon assumptions that have been inherited from derivative sources. In this case, our taste for ancient Greece has been spiked by the flavor of Renaissance Latin, yet ancient Epicureans enjoyed a pure draught. As a follower of this tradition, I seek to share the original flavor of the “true philosophy”, and I encourage seekers of knowledge to pursue their goal with the same intent.
Still … if you put a gun to my head … fine, I’ll properly “ismize” Epicurean physics as follows:
BEHOLD! Epíkouros properly defends a theory of somato-kenoism (versus the atomo-kenoism of Dēmókritos). Though, neither system exemplifies strict atomism, since both philosophers also accept the “intangible void” as a “real” part of their physics. Conversely, one might imagine a sort of “Peripatetic Atomist” who both believes that “nature abhors a vacuum”, but also, accepts that the “Five Elements” (including Aether) are made of invisible particles. … chew on that, Ismists.
Still, as always, I recommend against ismizing everyone and everything in the first place. (As a friend suggested, we are students of “Epicurean Philosophy” and not of “Epicureanism“.)
Anyway … Happy Solstice to the friends of the true philosophy!
And blessings to the swerving firstlings.
Your Friend,
EIKADISTES
Keeper of Twentiers.com
Editor of the Hedonicon

I’ve had the pleasure of reading Copley’s translation of De Rerum natura (