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Posts by Cassius

  • Thomas Nail - Returning to Lucretius

    • Cassius
    • January 30, 2026 at 4:52 AM

    1. I read this a long time ago and was not impressed, but that was so long ago I may well have failed to appreciate its significance. Seems like this has come up a number of times and we need to find a good source for the text and start a new thread on it. If I recall correctly I saw it originally on a Marxism page, but that page seems to be gone.

    Quote from DaveT

    PPS Also, I recently read that Karl Marx's doctoral dissertation some time in the 1840s was a comparison of Democritus' and Epicurus' atomism, finding Epicurus' teaching was consistent with the Young Hegalians philosophical views which he favored.

    2

    Quote from DaveT

    Can I conclude that Prof Nail's essay under consideration here is not relevant to whether Lucretius ignored Epicurus' atomism? I think the answer is that it is not.

    I may be losing the thread of the discussion in my mind but if what you mean is that the Nail essay does not provide a good argument that Lucretius was deviating from Epicurus, I think you're correct that in my mind it doesn't.

  • Thomas Nail - Returning to Lucretius

    • Cassius
    • January 29, 2026 at 3:16 PM
    Quote from DaveT

    So, back to the thrust of my question above: Why should anyone dwell on whether Lucretius interpreted Epicurus wrongly or indeed intentionally declined to include Epicurus’ atomism?

    This is a very good question and being able to answer it thoroughly is what this forum is all about.

    There are many aspects to it beyond those relating to whether Lucretius intentionally or accidentally deviated from Epicurus. That's important in itself, but it's not nearly as important as addressing what you wrote here:

    Quote from DaveT

    I don’t see why one must believe Epicurus was right about atoms and their movement to be adherents to his ethics, canonics, etc.

    What does it mean in this context to say that Epicurus was "right" or "wrong" about atoms?" I would argue that questions such as whether photons are considered to be particles with mass or waves or whether matter and energy are interchangeable" does not render Epicurus’ belief in eternally unchanging elemental particles. People can argue all day about new discoveries about details of atoms but if they remain at that level of analysis they are totally missing Epicurus' point.

    The issue is not establishing the exact specifications of what we call molecules or atoms or subatomic particles. Epicurus never claimed either to do that or to explain the mechanism of the swerve. What he did claim is that it is incorrect to speculate that things can be divided infinitely because that creates a logical impossibility.

    If infinite divisibilty were accepted, you'd have no mechanism for establishing that anything is or could be eternal and therefore reliable. You would have no foundation for a natural universe rather than a completely arbitrary supernatural one. You'd have no basis for having confidence in any conclusion whatsoever. It's possible to argue all day about the difference between "confidence" and "certainty," and say that all you need is "probability." That's a very old argument and what we'll be taking it up in discussing the "Academic Questions" discussed by Cicero.

    Epicurus was not a particle physicist and made no claims to be doing anything more than providing a rational basis for a non-supernatural universe. Neither Epicurus nor Lucretius nor any other Epicurean took up careers in splitting atoms or building atomic bombs, because engineering and technical innovation is secondary to having a rational theory for living life in the here and now.

    The issue is not that of being willing and able to accept and incorporate new observational discoveries. That's been going on for thousands of years and will always continue. The issue is the logical and conceptual one of whether ANY number of observational discoveries can ever be sufficient to allow us to conclude that the universe is natural and not supernatural. Or do we always have to hedge our bets and never escape the doubt that when we die we'll be tortured forever in hell?

    It's at that level that I would maintain even today that Epicurus was absolutely right about his important conclusions. He was right as to "atomism" that the universe ultimately has a natural and eternal material basis. He was right as to "canonics" that knowledge is possible and radical skepticism is a fraudulent impossibility. He was right as to "ethics" that there are no absolute supernatural rules and that nature provides all the guidance we need if we simply take a wide view of pleasure as all mental and physical experience in life which is desirable.

    There's going to be a wide disagreement among individuals on which pleasures to pursue because individual circumstances vary. But if we want to live happily we have to have a framework for making decisions now, that that means that everything in physics is divided between matter and space, everything in ethics is divided between pleasure and pain, and everything in canonics can be divided between true and false.

    In each of those three areas you have to look very carefully at what is meant by each word:

    • matter vs space
    • pleasure vs pain
    • true vs false

    There's an Epicurean way of looking at each one of those terms and how they relate to each other. This is the analytical framework that David Sedley described in his article "The inferential Basis of Epicurean Ethics."

    This analysis provides a framework in which you can have confidence because the alternatives in each category exclude all other possibilities once you see how sweeping they truly are. The details of what "observational scientists" tell you yesterday, today, or tomorrow are not nearly so important as that you have a framework within which to understand them. And that's what Lucian of Samosata was talking about in saying that Epicurus would have been confident that Alexander the Oracle Monger was a fraud, even if Epicurus were not immediately able to ascertain the precise manner in what Alexander was carrying out his trickery.

  • Happy Birthday General Thread

    • Cassius
    • January 29, 2026 at 4:07 AM

    Happy Birthday to GnothiSeauton! Learn more about GnothiSeauton and say happy birthday on GnothiSeauton's timeline: GnothiSeauton

  • Episode 319 - EATAQ1 - Epicurean Answers To Academic Questions - Not Yet Recorded

    • Cassius
    • January 28, 2026 at 3:44 PM

    That will be of GREAT help! Even just the table of contents indicates what we are up against, as it shows how the book starts in the middle with discussion of opposing schools. Someone who doesn't know that and doesn't already know the Epicurean position is going to be pretty hopelessly confused.


    Philodemus - Signs (P. Herc. 1065) - Harris.pdf

  • Thomas Nail - Returning to Lucretius

    • Cassius
    • January 27, 2026 at 7:57 PM

    Great catches Joshua. This is one of the ways going through Academic Questions and then to Philodemus "On Signs" is going to help us.

    E-V-E-R-Y-T-H-i-N-G depends upon this intersection of canonics / epistemology and physics.

    Is the universe (1) natural as arising solely through the interplay of atoms moving through void - and nothing else, or (2) is the universe caused by an interplay of a supernatural force projecting itself outward and onto something else?

    If (2), then everything depends on study and understanding of that supernatural force, which is impenetrable to the senses, and for which knowledge we must depend on geometry and math and reliance on propositional logical formulas.

    All of our discussion of pleasure and pain and natural and necessary desires and everything else involving ethics is out the window if we cannot be confident in answer (1). That;s because answer (2) exposes us to eternal punishment or reward. It should go without saying that eternal punishment and reward totally trumps all local and short-term considerations of pleasure or pain or good and bad or any other word you want to throw at the problem.

    Quote

    You know our system of natural philosophy, which depends upon the two principles, the efficient cause, and the subject matter out of which the efficient cause forms and produces what it does produce. For we must have recourse to geometry, since, if we do not, in what words will any one be able to enunciate the principles he wishes, or whom will he be able to cause to comprehend those assertions about life, and manners, and desiring and avoiding such and such things?

    Those who blew up the Platonic school from within were right to challenge the orthodoxy largely pioneered by Pythagorus but continued by Plato and also Aristotle. Their selection of a prime mover/fantasy god in the sky Option (2) based on speculation with no real sensory evidence makes no sense if we take the evidence of the senses given to us by Nature as what we are going to follow.

    Thomas Nail appears to be an example of someone looking to bend the simplicity of atomic nothing-comes-from-nothing physics to allow for the existence and control of supernatural otherworldly forces.

    There's no way to stand up to fantasizing except to insist on real evidence given to us by nature as self-evident, and that's what Epicurus' canonics is all about.

    It's worth pointing out that there is a healthy skepticism embedded within Epicurean philosophy with which all of us will agree, in that we will challenge conclusions that we believe to be false based on a combination of sensory evidence and deductive reasoning based on that evidence.

    But we need to be frank that everyone is not going to be willing to go along with Epicurus for the full ride. Frances Wright herself was not willing to go along with Epicurus and make deductive conclusions about the implications of nothing coming from nothing and nature never creating only a single thing of a kind.

    Cicero does an excellent job of lending respectability to arguments that we can never go any further than to say that some things are "probable" and some are not. Other than those of us who were taught to have faith in "GOD" and say that if God said it, it must be true, all the rest of us have had it beaten into our heads to "never say never" and to avoid "dogmatism" as the worst sin possible.

    That's what we're going to explore next on the podcast -- how to understand what the professionals disparage as "dogmatism" in Epicurean philosophy in the way that Epicurus himself understood it.

    And maybe for those who are least comfortable with getting anywhere near confidence about anything, we can point out that it's here that the rubber meets the road. You can't have it both ways. Either you're going to heaven or hell after you die, and you damn well better live accordingly, or your not. Most of us here who study Epicurus are comfortable saying that the answer is "not."

    And core to that position is that we stick with what Epicurus clearly had to say about the "uncuttable" nature of matter moving through the void, and stop trying to invest it Nail-like with mysterious properties that open the door to a supernatural realm.

  • What kinds of goals do Epicureans set for themselves?

    • Cassius
    • January 27, 2026 at 2:59 PM

    Ha - the correction backtracks from what Godfrey praised but his point still stands that it's a good way of talking about gods :)

  • Thomas Nail - Returning to Lucretius

    • Cassius
    • January 27, 2026 at 12:53 PM

    That's very helpful additional research Patrikios - thank you!

  • Episode 319 - EATAQ1 - Epicurean Answers To Academic Questions - Not Yet Recorded

    • Cassius
    • January 27, 2026 at 11:57 AM

    I have prepared an outline for our use in keeping track of where we are and where we are going as we go through Academic Questions. I am crossposting the current version into the Academic Questions thread here, but that version will fall out of date fairly soon.

    I'll continue to make revisions as we go through the episodes and update the final version here at EpicurusToday.

  • Cicero's "Academic Questions"

    • Cassius
    • January 27, 2026 at 11:53 AM

    The following is an outline I have prepared for our use in the upcoming series of Lucretius Today podcasts devoted to exploring Epicurean Canonics through Cicero's Academic Questions. The following version of this outline is going to be updated so over time please refer to it in its final location here.

    Lucretius Today Series - "Exploring Epicurean Canonics Through Cicero's Academic Questions"

    The Title Of This Series of Episodes Could Also Be: “The Question of Skepticism vs Truth, How It Destroyed Plato’s Academy And Plagues Humanity Even Today, And How Epicurus Answers The Problem.”

    “Academic Questions” is a turn-off name for a book, but the issues discussed in it are critically important to everything else. it’s not particularly long but it provides an overview of the issues that led to Aristotle breaking away from Plato’s school and for many further divisions thereafter.

    Throughout this discussion we are going to us the word “dogmatic” as meaning “holding that truth is possible.” This is not to be taken negatively as the word is used today. “Snow is white” and “Honey is sweet” are examples of a dogmatic statements. If you want to argue about those you’re in the wrong place and you will not be invited to participate in the following discussion unless and until you adopt a more reasonable non-contradictory position.

    • PD22. We must consider both the real purpose, and all the evidence of direct perception, to which we always refer the conclusions of opinion; otherwise, all will be full of doubt and confusion.
    • PD23. If you fight against all sensations, you will have no standard by which to judge even those of them which you say are false.
    • Lucretius 4:469-521. Now, if someone thinks that nothing is known, one thing he doesn’t know is whether that can be known, since he admits to knowing nothing. I shall therefore not bother to argue my case against this man who has himself stood with his own head in his footprints. And anyway, even allowing that he knows this, I’ll still ask him: Given that he has never before seen anything true in the world, from where does he get his knowledge of what knowing and not knowing are? What created his preconception of true and false? And what proved to him that doubtful differs from certain? You will find that the preconception of true has its origin in the senses, and that the senses cannot be refuted. For something of greater reliability must be found, something possessing the intrinsic power to convict falsehoods with truths.

    Key Points To Be Covered In The Lucretius Today Podcast Review

    1. Cicero’s purpose in writing “Academic Questions” was to explain the main controversy that led to the disputes between the schools and to point Cicero’s view of the way to resolve them.
    2. The book that comes down to us today apparently went through a number of revisions so it is not in its original complete form. What survives today is incomplete: Book 1 of the later version and substantial portions of the earlier version. As a result, the work does not come down to us in a single, original, complete form, and some structural and doctrinal inconsistencies reflect this compositional history.
    3. The sides of the argument are:
      1. Varro speaking for Antiochus of Aschalon. Antiochus presents a reconstructed “Old Academic” position that blends Plato and Aristotle and incorporates some aspects of Stoic epistemology. This view affirms that certain truths can be grasped with certainty via sense-perception with great emphasis on reason and methods such as formal logic and geometry / mathematics.
      2. Cicero speaking for Philo of Larissa, representing the New Academy. Philo embraced much more skeptical view of truth. This view denies that certainty is attainable, even by the use of the Stoic criterion of the kataleptic impression, and maintains instead that judgments must be guided by what is probabile or verisimile (persuasive or likely). Even formal reasoning cannot guarantee certainty on this account.
      3. Atticus does not advocate a systematic philosophical position but helps structure the dialogue and prompt for clarifications.

    Outline Of The Argument

    BOOK I

    I. Cicero Introduces The Topic And Gives The Method To Be Followed

    Acad. I.1–12

    • Cicero explains why the question of how to obtain knowledge (epistemology) is the foundational philosophical problem.
    • Cicero justifies the Academic method by presenting opposing views without dogmatic commitment.
    • Cicero emphasizes inquiry (quaerere) rather than assent (adsensus).

    II. Cicero Relates the History Of The Academy

    Acad. I.13–18

    • Cicero says Plato aimed at truth through reasoned inquiry.
    • Cicero says that the early Academy was engaged in serious investigation and not argument for the sake of argument.
    • Cicero explains how this background led to later disagreements over certainty.

    III. Varro Explains Antiochus’ Account of the “Old Academy”

    Acad. I.19–29

    • Varro introduces Antiochus’ reconstruction of Academic doctrine.
    • Varro claims that Plato and Aristotle shared a fundamentally dogmatic epistemology.
    • Varo says that knowledge is possible and this position was historically affirmed by the Academy.

    IV. Varro Provides A Defense of The Possibility Of Cognitive Certainty

    Acad. I.30–41

    • Varoi argues that the senses, when sound and processed rationally, are capable of grasping truth.
    • Varro argues that Reason confirms, organizes, and corrects the senses.
    • Varro says that the wise man can assent securely to what is known.

    V. Varro Criticizes Academic Skepticism

    Acad. I.42–46

    • Varro argues that Skepticism makes philosophy and life impossible.
    • Varro argues that if nothing can be known, inquiry loses purpose.
    • Varro says that Antiochus restored stability to philosophy.

    VI. Cicero States His Initial Skeptical Reservations To The Possibility of Affirming Anything As True

    Acad. I.47–49

    • Cicero expresses admiration for the coherence of Antiochus’ system.
    • But Cicero then raises doubts about whether certainty has actually been demonstrated.
    • Cicero begins his argument for skepticism.

    BOOK II

    VII. Cicero Presents And Argue The Skeptical Position That True Knowledge Is Impossible

    Acad. II.1–12

    • Cicero restates the problem of knowledge in sharper form.
    • Cicero focuses on the Stoic criterion of truth as the real target of his opposition.
    • Cicero argues that Skepticism is not nihilism.

    VIII. Cicero Attacks the Stoic Claim Of The Truth of “Kataleptic Impression”

    Acad. II.13–32

    • Cicero argues that no perception is so clear that it could not be false.
    • Cicero argues that illusions, dreams, madness, and error undermine certainty.
    • Cicero argues that the Stoic criterion of truth collapses under scrutiny.

    IX. Cicero Asserts That Reason Itself Is Fallible

    Acad. II.33–42

    • Cicero says that logical inference and reasoning depend on premises drawn from perception.
    • Cicero argues that memory and inference are equally fallible.
    • Cicero argues that even disciplines like geometry rely on assumptions not immune to doubt.

    X. Cicero Presents the Argument In Favor Of “Probability” Based on Carneadeas and Philo

    Acad. II.43–60

    • Cicero asserts that probability (probabile / verisimile) is the practical way to approach every issue.
    • Cicero argues that degrees of plausibility allow rational discrimination without certainty.
    • Cicero argues that the wise man gives his assent only cautiously, proportioned to evidence.

    XI. Cicero Replies To The Argument That Skepticism Leads To “Inaction” (He Denies That It Is Impossible To Actually Live As A Skeptic)

    Acad. II.61–67

    • Cicero says that Skepticism does not prevent action.
    • Cicero argues that ordinary life already proceeds on appearances, not certainty.
    • Cicero asserts that rational agency requires judgment, not infallibility.

    XII. Cicero Takes Sides With Carneades and Philo (The Academic Skeptics) And Criticizes Antiochus

    Acad. II.68–78

    • Cicero says that Antiochus offers reassurance but overreaches on the question of whether knowledge is possible.
    • Cicero argues that skepticism preserves intellectual integrity while allowing action.
    • Cicero argues that dogmatism mistakes psychological confidence for knowledge.

    XIII. Cicero Gives His Closing Argument For Academic Skepticism

    Acad. II.79–88 (end)

    • Cicero aligns himself with the skeptical Academy in method and rejects the claim that knowledge is possible.
    • Cicero says that philosophy is best practiced as disciplined inquiry without premature assent.
    • Cicero claims that the highest philosophical virtue is restraint in judgment.
  • Would It Be Fair To Say That Epicurus Taught "Lower Your Expectations And You'll Never Be Disappointed"?

    • Cassius
    • January 26, 2026 at 4:36 PM

    Good comments and they iliustrate why phrased it the way I did 🙂

  • Would It Be Fair To Say That Epicurus Taught "Lower Your Expectations And You'll Never Be Disappointed"?

    • Cassius
    • January 26, 2026 at 1:38 PM

    Please vote and then explain.

  • Inferential Foundations of Epicurean Ethics - Article By David Sedley

    • Cassius
    • January 26, 2026 at 9:24 AM

    Key Excerpts From "The inferential Foundations of Epicurean Ethics"

    sedley05
    • This article makes important points about how Epicurus’ position that there are only two feelings (Pleasure and Pain) parallels his argument that there are only two ultimate constituents of the Universe (Atoms and Void)
    • The article is divided in the following sections:
      • Outline of Epicurean Ethics
      • The Physics-Ethics Analogy
      • The Basic Division
      • The Division Defended
      • The Division’s Exhaustiveness
      • The Epicurean Good Life
      • The Instrumentality of Virtue - Epilogue
    • After largely skipping over the first section we’ll take a closer look at the details of each section of the argument.
    • All of these points are of course only my opinion. I highly recommend reading the whole article so you can judge for yourself

    1. Outline of Epicurean Ethics

    I find this section to be a disappointing start. Much of it is a good standard standard summary of Epicurean ethics. Unfortunately it is written from the point of view of those who assert the importance of the katastematic / kinetic distinction and that Epicurus’s ultimate goal was not “Pleasure” but “Katastematic Pleasure.” I believe this error manifests itself here, where Sedley states that “Katastematic pleasure is abence of pain” rather than “Pleasure is the absence of pain.”

    sedley01

    This position causes Seldey to deprecate kinetic pleasures as if the only reason we require them is to produce katastematic pleasure. The obvious problems with this position cause Sedley to have to acknowledge that Epicurus does “apparently” consider kinetic pleasures a part of the good life.

    sedley02
    sedley02

    It’s not the purposes of this presentation to argue this issue in detail, but it is important to note that Sedley’s position conflicts with Gosling & Taylor, who take the position in their detailed treatise “The Greeks On Pleasure” that Epicurus was focused on “Pleasure” as the goal. They argue that any attention to distinguishing kinetic and katastematic pleasure was at best secondary, and that katastematic pleasures are not inherently more important than kinetic ones. The Gosling & Taylor position was expanded at length by Boris Nikolsky in his article “Epicurus On Pleasure.” Emily Austin took sides with Gosling & Taylor in her footnote eight in Chapter 4 of “Living for Pleasure”:

    Quote

    [!quote] This is a non-specialist text, so I have chosen not to wade into the dispute about katastematic and kinetic pleasures in the body of the text. A specialist will recognize that I am adopting a view roughly in line with Gosling and Taylor (1982) and Arenson (2019). On my reading, katastematic pleasures are sensory pleasures that issue from confidence in one’s ability to satisfy one’s necessary desires and an awareness of one’s healthy psychological functioning; choice-worthy kinetic pleasures are the various pleasures consistent with maintaining healthy functioning, and those pleasures vary, but do not increase healthy psychological functioning. (emphasis added)

    From here we can move on to the reason that his article is so helpful.

    2. The Physics - Ethics Analogy

    A. The Foundations of Epicurean Physics and Epicurean Ethics Are Analogous

    sedley03

    B. In Physics, The Senses Tell Us There Are Bodies And Space

    In physics Epicurus starts off with positions which he can argue to be self evident: that there are bodies and there is space within which the bodies move.

    sedley05

    Epicurus does not attempt to discuss the underlying specific natures of atoms and void until he first establishes that these are the two categories that exclusively exist - that these are the sole constituents of the universe.

    sedley05

    C. Where Does This Same Procedure Exist? Not In Menoeceus, But in Torquatus’ Presentation in Cicero’s On Ends Book One.

    The letter to Menoeceus is a straightforward listing of doctrine, not argument.

    sedley05

    We see that the ethics argument follows the pattern of the physics argument because Torquatus explicitly tells us that Epicurus’ argument starts with the establishment of the two possibilities - pleasure and pain.

    sedley05

    3. The Basic Division

    The Good Is Pleasure and The Evil Is Pain

    Epicurus places the summum bonum in pleasure and the summum mallum in pain.

    sedley05

    This is not a logical argument based on words but an appeal to the perceptions of the senses.

    sedley05

    In His Argument To Establish “Pleasure” As The Goal, Epicurus Specifies Nothing At All About How Individual Creatures Conduct Their Pursuit of Pleasure

    sedley05

    4. The Division Defended

    Explaining Why Torquatus Says That Later Epicureans Differed As To How To interpret Epicurus’ Arguments In Light Of His Position That No Argument Is Needed To Establish Pleasure As the Good.

    sedley05
    sedley05

    5. The Division’s Exhaustiveness

    Any Feeling Which Is Not Painful Is Ipso Facto Pleasant And Vice Versa

    sedley05

    6. The Epicurean Good Life

    Three Parallel Stages Of Argument

    sedley05

    Summum Bonum Means Simply “The Good”

    sedley05

    7. The Instrumentality Of Virtue

    sedley05

    8. Epilogue

    sedley05

    Epicurus’ first focus is on establishing that in physics everything divides into bodies and void, while in ethics the duality is pleasure and pain.

    In Physics It is both correct to say that (1) at the highest level of analysis everything is composed of matter and void and (2) the things we see around us differ vastly in all sorts of details in the way they affect us.

    Seeing that everything from a physical perspective resolves into either matter or void is essential to understanding that there is no third supernatural nature. But as essential as that is as a starting point, you then have to figure out how the atoms and void combine in different ways to form different things if you’re going to work with physics successfully to see that everything happens naturally.

    Seeing that everything from an ethical perspective resolves into either pleasure or pain is essential to understanding that there is no third middle or neutral state and no good and evil outside of pleasure and pain. But as essential as that is as a starting point, you then have to figure out how the pleasures and pains work together in different ways to produce different results if you’re going to work with ethics successfully to live happily.

  • Episode 319 - EATAQ1 - Epicurean Answers To Academic Questions - Not Yet Recorded

    • Cassius
    • January 25, 2026 at 4:19 PM

    Welcome to Episode 319 of Lucretius Today. This is a podcast dedicated to the poet Lucretius, who wrote "On The Nature of Things," the most complete presentation of Epicurean philosophy left to us from the ancient world. Each week we walk you through the Epicurean texts, and we discuss how Epicurean philosophy can apply to you today. If you find the Epicurean worldview attractive, we invite you to join us in the study of Epicurus at EpicureanFriends.com, where we discuss this and all of our podcast episodes.
       
    Last week we completed our series on Cicero's "Tusculan Disputations," and this week we start a new series that will help us with canonics / epistemology. We will eventually move to Philodemus' "On Signs" / "On Methods of Inference," and when we do we will refer to David Sedley's article on "On Signs," and the appendix in the translation prepared by Philip Lacey, both of which are very good but difficult.

    To get us acclimated to the issues, we need a little more Cicero from his work "Academic Questions." This is much shorter than On Ends and Tusculan Disputations but gives us an overview of the issues that split Plato's Academy and shows how Aristotle and the Stoics (and Epicurus) responded to those controversies.

    Once we get that overview we'll be prepared to tackle Philodemus and get a deeper explanation of the Epicurean view. This wee will will start with a general introduction and get into Section 1.

    Out text will come from
    Cicero - Academic Questions - Yonge We'll likely stick with Yonge primarily, but we'll also refer to the Rackam translation here:


    Cicero On Nature Of Gods Academica Loeb Rackham : Free Download, Borrow, and Streaming : Internet Archive

  • Episode 318 - TD44 - In the End It Is Pleasure - Not Virtue - That Gives Meaning To A Happy Life

    • Cassius
    • January 25, 2026 at 4:00 PM

    Today we completed recording our final episode of the Tusculan Disputations series. It will be posted later this week.

    Beginning next week we will be starting a new series. We have lots of material we'd like to cover, but at present I think we need to turn our attention to Canonics and eventually to Philodemus' "On Signs" / "On Methods of Inference." When we do that, we will refer to David Sedley's article on "On Signs," and the appendix in the translation prepared by Philip Lacey, both of which are very good.

    However that's going to be very difficult material, and we have the serious problem that the remaining text from Philodemus start in the middle. We therefore don't have Philodemus' own explanation of the issues, and given that the topic is so unfamiliar to most of us it is hard to tell what positions belong to what parties in the remaining text.

    For that reason I think we need a little more Cicero. Cicero proved very helpful in understanding Epicurean views of divinity in "On the Nature of the Gods" and Epicurean views of ethics in "On Ends" and "Tusculan Disputations.

    Likewise, Cicero provides an overview of issues involving Canonics/Skepticism in his work "Academic Questions," which also incorporates discussion of Epicurus. AQ is not nearly as long as On Ends or Tusculan Disputations, but it will give us an overview of the issues that split Plato's Academy and how Aristotle and the Stoics (and Epicurus) responded to those controversies.

    Once we get that overview we'll be prepared to tackle Philodemus and get a deeper explanation of the Epicurean view.

    I'll set out some notes over the coming week and we'll get set up for this next text. The title is off-putting but it is really very interesting, and the depth of the subject is well suited to the detailed review that we can provide over the podcast - so long as Joshua can find relevant color commentary!

    Cicero - Academic Questions - Yonge


    We'll likely stick with Yonge primarily, but we'll also refer to the Rackam translation here:

    Cicero On Nature Of Gods Academica Loeb Rackham : Free Download, Borrow, and Streaming : Internet Archive
    Cicero - On The Nature of The Gods - Academica
    archive.org
  • Inferential Foundations of Epicurean Ethics - Article By David Sedley

    • Cassius
    • January 25, 2026 at 2:57 PM

    For anyone interested i am uploading the slides I made for today's Zoom meeting at the address below. I think these excerpts provide some of the key points of the article:

    Zoom of 01-24-26
    Sunday Zoom, January 24, 2026
    epicurustoday.com
  • Inferential Foundations of Epicurean Ethics - Article By David Sedley

    • Cassius
    • January 25, 2026 at 4:54 AM
    Quote from Bryan

    Both are correct, and it may be more helpful to highlight the similarities in the interpretations.

    As I read the article that is probably the main takeaway.

    Sedley is saying that Epicurus' first focus is on establishing that in physics everything divides into bodies and void, while in ethics the duality is pleasure and pain.

    In Physics It is both correct to say that (1) at the highest level of analysis everything is composed of matter and void and (2) the things we see around us differ vastly in all sorts of details in the way they affect us.

    Seeing that everything from a physical perspective resolves into either matter or void is essential to understanding that there is no third supernatural nature. But as essential as that is as a starting point, you then have to figure out how the atoms and void combine in different ways to form different things if you're going to work with physics successfully to see that everything happens naturally.

    Seeing that everything from an ethical perspective resolves into either pleasure or pain is essential to understanding that there is no third middle or neutral state and no good and evil outside of pleasure and pain. But as essential as that is as a starting point, you then have to figure out how the pleasures and pains work together in different ways to produce different results if you're going to work with ethics successfully to live happily.

  • Episode 318 - TD44 - In the End It Is Pleasure - Not Virtue - That Gives Meaning To A Happy Life

    • Cassius
    • January 24, 2026 at 2:18 PM

    Welcome to Episode 318 of Lucretius Today. This is a podcast dedicated to the poet Lucretius, who wrote "On The Nature of Things," the most complete presentation of Epicurean philosophy left to us from the ancient world. Each week we walk you through the Epicurean texts, and we discuss how Epicurean philosophy can apply to you today. If you find the Epicurean worldview attractive, we invite you to join us in the study of Epicurus at EpicureanFriends.com, where we discuss this and all of our podcast episodes.
       
    We are closing in on the end of those portions of Tusculan Disputations that are most relevant to Epicurean philosophy today, so we'll pick up this week with Section 34 of Part 5.

    Cicero spends the next several sections trying to chip away at pleasure being the goal of life by discussing how luxury, honor, and riches are not required for happiness. He does so generically without direct mention of Epicurus, but we'll discuss his examples and how his argument actually proves Epicurus' point that pleasure is the goal: those who overindulge obtain do not in sum obtain pleasure, but in fact more pain than pleasure.

  • Happy Birthday General Thread

    • Cassius
    • January 24, 2026 at 1:57 PM

    Happy Birthday EricR Hope you are staying warm in Canada!

  • Happy Birthday General Thread

    • Cassius
    • January 24, 2026 at 4:06 AM

    Happy Birthday to EricR! Learn more about EricR and say happy birthday on EricR's timeline: EricR

  • What Is The Relationship Between "Hedonic Calculus" Analysis" and "Natural and Necessary Desire" Analysis?

    • Cassius
    • January 23, 2026 at 4:25 PM

    I am unable to find an academic article on point, but I am sure that my searching is incomplete. Desire and Pleasure are such common topics that references to the point could be made any number of places, but we're looking for something very specific to the effect that Epicurus was looking at the topic differently from Plato and/or others. I'll keep looking!

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    Cassius February 4, 2026 at 12:29 PM
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    Martin February 4, 2026 at 11:21 AM
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    Cassius February 4, 2026 at 11:13 AM
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    wbernys February 3, 2026 at 11:15 PM
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    Eikadistes February 3, 2026 at 9:19 PM
  • PD21 - Commentary and Interpretation

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    EdGenX February 3, 2026 at 11:55 AM
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