50 ideas
14052 | Begin philosophy when you are young, and keep going when you are old [Epicurus] |
Full Idea: Let no one delay the study of philosophy while young nor weary of it when old; for no one is either too young or too old for the health of the soul. | |
From: Epicurus (Letter to Menoeceus [c.291 BCE], 122) | |
A reaction: I agree with this on both accounts. I think the correct age to begin the study of philosophy is four, and it is vital to continue its study up to the point where you can no longer remember your own name. 'Health of the soul' sounds right too. |
13395 | If an analysis shows the features of a concept, it doesn't seem to 'reduce' the concept [Jubien] |
Full Idea: An analysis of a concept tells us what the concept is by telling us what its constituents are and how they are combined. ..The features of the concept are present in the analysis, making it surprising the 'reductive' analyses are sought. | |
From: Michael Jubien (Possibility [2009], 4.5) | |
A reaction: He says that there are nevertheless reductive analyses, such as David Lewis's analysis of modality. We must disentangle conceptual analysis from causal analysis (e.g. in his example of the physicalist reduction of mind). |
13378 | It is a mistake to think that the logic developed for mathematics can clarify language and philosophy [Jubien] |
Full Idea: It has often been uncritically assumed that logic that was initially a tool for clarifying mathematics could be seamlessly and uniformly applied in the effort to clarify ordinary language and philosophy, but this has been a real mistake. | |
From: Michael Jubien (Possibility [2009], Intro) | |
A reaction: I'm not saying he's right (since you need stupendous expertise to make that call) but my intuitions are that he has a good point, and he is at least addressing a crucial question which most analytical philosophers avert their eyes from. |
13402 | We only grasp a name if we know whether to apply it when the bearer changes [Jubien] |
Full Idea: We cannot be said to have a full grasp of a name unless we have a definite disposition to apply it or to withhold it under whatever conceivable changes the bearer of the name might come to undergo. | |
From: Michael Jubien (Possibility [2009], 5.3) | |
A reaction: This is right, and an excellent counterproposal to the logicians' notion that names have to rigidly designate. As a bare minimum, you are not supposed to deny the identity of your parents because they have grown a bit older, or a damaged painting. |
13405 | The baptiser picks the bearer of a name, but social use decides the category [Jubien] |
Full Idea: The person who introduces a proper name gets to pick its bearer, but its category - and consequently the meaning of the name - is determined by social use. | |
From: Michael Jubien (Possibility [2009], 7) | |
A reaction: New 'division of labour'. The idea that a name has some sort of meaning seems right and important. If babies were switched after baptism, social use might fix the name to the new baby. The namer could stipulate the category at the baptism. Too neat. |
13399 | Examples show that ordinary proper names are not rigid designators [Jubien] |
Full Idea: There are plenty of examples to show that ordinary proper names simply are not rigid designators. | |
From: Michael Jubien (Possibility [2009], 5.1) | |
A reaction: His examples are the planet Venus and the dust of which it is formed, and a statue made of clay. In other words, for some objects, perhaps under certain descriptions (e.g. functional ones), the baptised matter can change. Rigidity is an extra topping. |
13398 | We could make a contingent description into a rigid and necessary one by adding 'actual' to it [Jubien] |
Full Idea: 'The winner of the Derby' satisfies some horse, but only accidentally. But we could 'rigidify' the description by inserting 'actual' into it, giving 'the actual winner of the Derby'. Winning is a contingent property, but actually winning is necessary. | |
From: Michael Jubien (Possibility [2009], 5.1) | |
A reaction: I like this unusual proposal because instead of switching into formal logic in order to capture the ideas we are after, he is drawing on the resources of ordinary language, offering philosophers a way of speaking plain English more precisely. |
13392 | Philosophers reduce complex English kind-quantifiers to the simplistic first-order quantifier [Jubien] |
Full Idea: There is a readiness of philosophers to 'translate' English, with its seeming multitude of kind-driven quantifiers, into first-order logic, with its single wide-open quantifier. | |
From: Michael Jubien (Possibility [2009], 4.1) | |
A reaction: As in example he says that reference to a statue involves a 'statue-quantifier'. Thus we say things about the statue that we would not say about the clay, which would involve a 'clay-quantifier'. |
15533 | We can quantify over fictions by quantifying for real over their names [Lewis] |
Full Idea: Substitutionalists simulate quantification over fictional characters by quantifying for real over fictional names. | |
From: David Lewis (Noneism or Allism? [1990], p.159) | |
A reaction: I would say that a fiction is a file of conceptual information, identified by a label. The label brings baggage with it, and there is no existence in the label. |
15534 | We could quantify over impossible objects - as bundles of properties [Lewis] |
Full Idea: We can quantify over Meinongian objects by quantifying for real over property bundles (such as the bundle of roundness and squareness). | |
From: David Lewis (Noneism or Allism? [1990], p.159) |
15532 | 'Allists' embrace the existence of all controversial entities; 'noneists' reject all but the obvious ones [Lewis] |
Full Idea: An expansive friend of the controversial entities who says they all exist may be called an 'allist'; a tough desert-dweller who says that none of them exist may be called a 'noneist'. | |
From: David Lewis (Noneism or Allism? [1990], p.152) | |
A reaction: Lewis gives examples of the obvious and the controversial entities. Lewis implies that he himself is in between. The word 'desert' is a reference to Quine. |
15535 | We can't accept a use of 'existence' that says only some of the things there are actually exist [Lewis] |
Full Idea: If 'existence' is understood so that it can be a substantive thesis that only some of the things there are exist, we will have none of it. | |
From: David Lewis (Noneism or Allism? [1990], p.163) | |
A reaction: Lewis is a strong advocate, following Quine, of the univocal sense of the word 'exist', and I agree with them. |
13404 | To exist necessarily is to have an essence whose own essence must be instantiated [Jubien] |
Full Idea: For a thing to exist necessarily is for it to have an entity-essence whose own entity-essence entails being instantiated. | |
From: Michael Jubien (Possibility [2009], 6.4) | |
A reaction: This is the culmination of a lengthy discussion, and is not immediately persuasive. For Jubien the analysis rests on a platonist view of properties, which doesn't help. |
13386 | If objects are just conventional, there is no ontological distinction between stuff and things [Jubien] |
Full Idea: Under the Quinean (conventional) view of objects, there is no ontological distinction between stuff and things. | |
From: Michael Jubien (Possibility [2009], 1.5) | |
A reaction: This is the bold nihilistic account of physical objects, which seems to push all of our ontology into language (English?). We could devise divisions into things that were just crazy, and likely to lead to the rapid extinction of creatures who did it. |
13403 | The category of Venus is not 'object', or even 'planet', but a particular class of good-sized object [Jubien] |
Full Idea: The category of Venus is not 'physical object' or 'mereological sum', but narrower. Surprisingly, it is not 'planet', since it might cease to be a planet and still merit the name 'Venus'. It is something like 'well-integrated, good-sized physical object'. | |
From: Michael Jubien (Possibility [2009], 5.3) | |
A reaction: Jubien is illustrating Idea 13402. This is a nice demonstration of how one might go about the task of constructing categories - by showing the modal profiles of things to which names have been assigned. Categories are file names. |
13375 | The idea that every entity must have identity conditions is an unfortunate misunderstanding [Jubien] |
Full Idea: The pervasiveness, throughout philosophy, of the assumption that entities of various kinds need identity conditions is one unfortunate aspect of Quine's important philosophical legacy. | |
From: Michael Jubien (Possibility [2009], Intro) | |
A reaction: Lowe seems to be an example of a philosopher who habitually demands individuation conditions for everything that is referred to. Presumably the alternative is to take lots of things as primitive, but this seems to be second best. |
13393 | Any entity has the unique property of being that specific entity [Jubien] |
Full Idea: For any entity of any sort, abstract or concrete, I assume there is a property of being that specific entity. For want of a better term, I will call such properties entity-essences. They are 'singulary' - not instantiable by more than one thing at a time. | |
From: Michael Jubien (Possibility [2009], 4.2) | |
A reaction: Baffling. Why would someone who has mocked all sorts of bogus philosophical claims based on logic then go on to assert the existence of such weird things as these? I can't make sense of this property being added to a thing's other properties. |
13388 | It is incoherent to think that a given entity depends on its kind for its existence [Jubien] |
Full Idea: It is simply far-fetched - even incoherent - to think that, given an entity, of whatever kind, its being a single entity somehow consists in its satisfying some condition involving the kind to which it belongs (or concepts related to that kind). | |
From: Michael Jubien (Possibility [2009], 2.3) | |
A reaction: Well said. I can't see how philosophers have allowed themselves to drift into such a daft view. Kinds blatantly depend on the individuals that constitute them, so how could the identity of the individuals depend on their kind? |
13384 | Objects need conventions for their matter, their temporal possibility, and their spatial possibility [Jubien] |
Full Idea: We need a first convention to determine what matter constitutes objects, then a second to determine whether there are different temporal possibilities for a given object, then a third for different spatial possibilities. | |
From: Michael Jubien (Possibility [2009], 1.5) | |
A reaction: This is building up a Quinean account of objects, as mere matter in regions of spacetime, which are then precisely determined by a set of social conventions. |
13385 | Basically, the world doesn't have ready-made 'objects'; we carve objects any way we like [Jubien] |
Full Idea: There is a certain - very mild - sense in which I don't think the physical world comes with ready-made objects. I think instead that we (conventionally) carve it up into objects, and this can be done any way we like. | |
From: Michael Jubien (Possibility [2009], 1.5) | |
A reaction: I have no idea how one could begin to refute such a view. Obviously there are divisions (even if only of physical density) in the world, but nothing obliges us to make divisions at those points. We happily accept objects with gaps in them. |
13383 | If the statue is loved and the clay hated, that is about the object first qua statue, then qua clay [Jubien] |
Full Idea: If a sculptor says 'I love the statue but I really hate that piece of clay - it is way too hard to work with' ...the statement is partly is partly about that object qua statue and partly about that object qua piece of clay. | |
From: Michael Jubien (Possibility [2009], 1.4) | |
A reaction: His point is that identity is partly determined by the concept or category under which the thing falls. Plausible. Lots of identity muddles seem to come from our conceptual scheme not being quite up to the job when things change. |
13400 | If one entity is an object, a statue, and some clay, these come apart in at least three ways [Jubien] |
Full Idea: A single entity is a physical object, a piece of clay and a statue. We seem to have that the object could be scattered, but not the other two; the object and the clay could be spherical, but not the statue; and only the object could have different matter. | |
From: Michael Jubien (Possibility [2009], 5.2) | |
A reaction: His proposal, roughly, is to reduce object-talk to property-talk, and then see the three views of this object as referring to different sets of properties, rather than to a single thing. Promising, except that he goes platonist about properties. |
13401 | The idea of coincident objects is a last resort, as it is opposed to commonsense naturalism [Jubien] |
Full Idea: I find it surprising that some philosophers accept 'coincident objects'. This notion clearly offends against commonsense 'naturalism' about the world, so it should be viewed as a last resort. | |
From: Michael Jubien (Possibility [2009], 5.2 n9) | |
A reaction: I'm not quite clear why he invokes 'naturalism', but I pass on his intuition because it seems right to me. |
13380 | Parts seem to matter when it is just an object, but not matter when it is a kind of object [Jubien] |
Full Idea: When thought of just as an object, the parts of a thing seem definitive and their arrangement seems inconsequential. But when thought of as an object of a familiar kind it is reversed: the arrangement is important and the parts are inessential. | |
From: Michael Jubien (Possibility [2009], 1.4) | |
A reaction: This is analogous to the Ship of Theseus, where we say that the tour operator and the museum keeper give different accounts of whether it is the same ship. The 'kind' Jubien refers to is most likely to be a functional kind. |
13376 | We should not regard essentialism as just nontrivial de re necessity [Jubien] |
Full Idea: I argue against the widely accepted characterization of the doctrine of 'essentialism' as the acceptance of nontrivial de re necessity | |
From: Michael Jubien (Possibility [2009], Intro) | |
A reaction: I agree entirely. The notion of an essence is powerful if clearly distinguished. The test is: can everything being said about essences be just as easily said by referring to necessities? If so, you are talking about the wrong thing. |
13381 | Thinking of them as 'ships' the repaired ship is the original, but as 'objects' the reassembly is the original [Jubien] |
Full Idea: Thinking about the original ship as a ship, we think we continue to have the 'same ship' as each part is replaced; ...but when we think of them as physical objects, we think the original ship and the outcome of the reassembly are one and the same. | |
From: Michael Jubien (Possibility [2009], 1.4) | |
A reaction: It seems to me that you cannot eliminate how we are thinking of the ship as influencing how we should read it. My suggestion is to think of Theseus himself valuing either the repaired or the reassembled version. That's bad for Jubien's account. |
13382 | Rearranging the planks as a ship is confusing; we'd say it was the same 'object' with a different arrangement [Jubien] |
Full Idea: That the planks are rearranged as a ship elevates the sense of mystery, because arrangements matter for ships, but if they had been arranged differently we would have the same intuition - that it still counts as the same object. | |
From: Michael Jubien (Possibility [2009], 1.4) | |
A reaction: Implausible. Classic case: can I have my pen back? - smashes it to pieces and hands it over with 'there you are' - that's not my pen! - Jubien says it's the same object! - it isn't my pen, and it isn't the same object either! Where is Shelley's skylark? |
13379 | If two objects are indiscernible across spacetime, how could we decide whether or not they are the same? [Jubien] |
Full Idea: If a bit of matter has a qualitatively indistinguishable object located at a later time, with a path of spacetime connecting them, how could we determine they are identical? Neither identity nor diversity follows from qualitative indiscernibility. | |
From: Michael Jubien (Possibility [2009], 1.3) | |
A reaction: All these principles expounded by Leibniz were assumed to be timeless, but for identity over time the whole notion of things retaining identity despite changing has to be rethought. Essentialism to the rescue. |
13394 | Entailment does not result from mutual necessity; mutual necessity ensures entailment [Jubien] |
Full Idea: Typically philosophers say that for P to entail Q is for the proposition that all P's are Q's to be necessary. I think this analysis is backwards, and that necessity rests on entailment, not vice versa. | |
From: Michael Jubien (Possibility [2009], 4.4) | |
A reaction: His example is that being a horse and being an animal are such that one entails the other. In other words, necessities arise out of property relations (which for Jubien are necessary because the properties are platonically timeless). Wrong. |
13391 | Modality concerns relations among platonic properties [Jubien] |
Full Idea: I think modality has to do with relations involving the abstract part of the world, specifically with relations among (Platonic) properties. | |
From: Michael Jubien (Possibility [2009], 3.2) | |
A reaction: [Sider calls Jubien's the 'governance' view, since abstract relations govern the concrete] I take Jubien here (having done a beautiful demolition job on the possible worlds account of modality) to go spectacularly wrong. Modality starts in the concrete. |
13374 | To analyse modality, we must give accounts of objects, properties and relations [Jubien] |
Full Idea: The ultimate analysis of possibility and necessity depends on two important ontological decisions: the choice of an analysis of the intuitive concept of a physical object, and the other is the positing of properties and relations. | |
From: Michael Jubien (Possibility [2009], Intro) | |
A reaction: In the same passage he adopts Quine's view of objects, leading to mereological essentialism, and a Platonic view of properties, based on Lewis's argument for taking some things at face value. One might start with processes and events instead. |
13389 | The love of possible worlds is part of the dream that technical logic solves philosophical problems [Jubien] |
Full Idea: I believe the contemporary infatuation with possible worlds in philosophy stems in part from a tendency to think that technical logic offers silver-bullet solutions to philosophical problems. | |
From: Michael Jubien (Possibility [2009], 3.2) | |
A reaction: I would say that the main reason for the infatuation is just novelty. As a technical device it was only invented in the 1960s, so we are in a honeymoon period, as we would be with any new gadget. I can't imagine possible worlds figuring much in 100 years. |
13390 | Possible worlds don't explain necessity, because they are a bunch of parallel contingencies [Jubien] |
Full Idea: The fundamental problem is that in world theory, what passes for necessity is in effect just a bunch of parallel 'contingencies'. | |
From: Michael Jubien (Possibility [2009], 3.2) | |
A reaction: Jubien's general complaint is that there is no connection between the possible worlds and the actual world, so they are irrelevant, but this is a nicely different point - that lots of contingent worlds can't add up to necessity. Nice. |
14062 | Sooner follow mythology, than accept the 'fate' of natural philosophers [Epicurus] |
Full Idea: It would be better to follow the stories told about the gods than to be a slave to the fate of the natural philosophers. | |
From: Epicurus (Letter to Menoeceus [c.291 BCE], 134) | |
A reaction: At this point in history there is a blurring between autonomous decisions and what we now call free will, and also between fate and determinism, which we try to keep distinct. |
1837 | We should not refer things to irresponsible necessity, but either to fortune or to our own will [Epicurus] |
Full Idea: The best men have no belief in necessity (set up by some as mistress of all), but refer some things to fortune, some to ourselves, because necessity is irresponsible, and fortune is unstable, while our own will is free. | |
From: Epicurus (Letter to Menoeceus [c.291 BCE], 133), quoted by Diogenes Laertius - Lives of Eminent Philosophers 10.27 |
13396 | Analysing mental concepts points to 'inclusionism' - that mental phenomena are part of the physical [Jubien] |
Full Idea: We have (physicalist) 'inclusionism' when the mental is included in the physical, and mental phenomena are to be found among physical phenomena. Only inclusionism is compatible with a genuine physicalist analysis of mental concepts. | |
From: Michael Jubien (Possibility [2009], 4.5) | |
A reaction: This isn't the thesis of conceptual dualism (which I like), but an interesting accompaniment for it. Jubien is offering this as an alternative to 'reductive' analysis, translating all the mental concepts into physical language. He extends 'physical'. |
13377 | First-order logic tilts in favour of the direct reference theory, in its use of constants for objects [Jubien] |
Full Idea: First-order logic tilts in favor of the direct reference account of proper names by using individual constants to play the intuitive role of names, and by 'interpreting' the constants simply as the individuals that are assigned to them for truth-values. | |
From: Michael Jubien (Possibility [2009], Intro) | |
A reaction: This is the kind of challenge to orthodoxy that is much needed at the moment. We have an orthodoxy which is almost a new 'scholasticism', that logic will clarify our metaphysics. Trying to enhance the logic for the job may be a dead end. |
1836 | Prudence is more valuable than philosophy, because it avoids confusions of the soul [Epicurus] |
Full Idea: The greatest good in avoiding confusion of the soul is prudence [phronesis], on which account prudence is something more valuable than even philosophy. | |
From: Epicurus (Letter to Menoeceus [c.291 BCE], 132), quoted by Diogenes Laertius - Lives of Eminent Philosophers 10.27 |
14061 | Our own choices are autonomous, and the basis for praise and blame [Epicurus] |
Full Idea: What occurs by our own agency is autonomous, and it is to this that praise and blame are attached. | |
From: Epicurus (Letter to Menoeceus [c.291 BCE], 133) | |
A reaction: I don't think this should be understand as an assertion of free will in the modern sense. The 'swerve' of the atoms just means that decisions can arise out of us - not that they are somehow outside of nature. |
14055 | The wisdom that produces a good life also produces a good death [Epicurus] |
Full Idea: The same kind of practice produces a good life and a good death. | |
From: Epicurus (Letter to Menoeceus [c.291 BCE], 126) | |
A reaction: This is the kind of old fashioned observation which we would do well to hang on to. The ideal of dying well has vanished from our culture. |
14054 | Fearing death is absurd, because we are not present when it occurs [Epicurus] |
Full Idea: Death, the most frightening of bad things, is nothing to us; since when we exist, death is not yet present, and when death is present, then we do not exist. | |
From: Epicurus (Letter to Menoeceus [c.291 BCE], 125) | |
A reaction: This is a fairly accurate observation. To fear not being in this life is a bit like fearing not being in Vancouver next Tuesday. It also involves the paradox of the present moment. E.g. Idea 1904. |
14053 | It is absurd to fear the pain of death when you are not even facing it [Epicurus] |
Full Idea: He is a fool who says that he fears death not because it will be painful when present but because it is painful when it is still to come. | |
From: Epicurus (Letter to Menoeceus [c.291 BCE], 125) | |
A reaction: Not very plausible, I'm afraid. It provides a good argument in favour of smoking, if the lung cancer is far in the future. Paralysing fear is daft, but some remote fears should be heeded. |
14057 | All pleasures are good, but it is not always right to choose them [Epicurus] |
Full Idea: Every pleasure is a good thing, since it has a nature congenial to us, but not every one is to be chosen, just as every pain is a bad thing, but not every one is such as to be always avoided. | |
From: Epicurus (Letter to Menoeceus [c.291 BCE], 129) | |
A reaction: This kind of sensible remark would be wholly endorsed by Bentham and Mill. This fits in with the excellent distinction between what is right and what is good. |
14058 | Pleasure is the goal, but as lack of pain and calm mind, not as depraved or greedy pleasure [Epicurus] |
Full Idea: When we say that pleasure is the goal we do not mean the pleasures of the profligate or the pleasures of consumption, but rather the lack of pain in the body and disturbance in the soul. | |
From: Epicurus (Letter to Menoeceus [c.291 BCE], 131) | |
A reaction: I don't really understand the aspiration to a 'calm mind'. No one likes stress, but total calmness sounds close to non-existence. The mean! There is no achievement without pain. |
1833 | Pleasure is the first good in life [Epicurus] |
Full Idea: Pleasure is the beginning and end of living happily, and we recognise this as the first good. | |
From: Epicurus (Letter to Menoeceus [c.291 BCE], 128) | |
A reaction: We might enquire what we would live for if our capacities for pleasure were surgically removed. Would we still experience intellectual curiosity, or an aspiration to some cold and remote goodness? |
14063 | Sooner a good decision going wrong, than a bad one turning out for the good [Epicurus] |
Full Idea: It is better for a good decision not to turn out right in action than for a bad decision to turn out right because of chance. | |
From: Epicurus (Letter to Menoeceus [c.291 BCE], 135) | |
A reaction: This sounds right, and on the whole the law agrees. Notice that what we need is a 'good decision', and not just to 'mean well'. The well-meaning fool is wicked. I am opposed to consequentialism, and agree with this idea. |
14059 | The best life is not sensuality, but rational choice and healthy opinion [Epicurus] |
Full Idea: It is not drinking bouts or enjoying boys and women or consuming fish which produces the pleasant life, but sober calculation which searches out reasons for every choice, and drives out opinions which produce turmoil of the soul. | |
From: Epicurus (Letter to Menoeceus [c.291 BCE], 132) | |
A reaction: This more or less sums up what I would call the philosophical life. Spontaneity is good, and some pleasures are killed by excessive thought, but on the whole actions are always better if good reasons are found, and error brings chaos. |
1835 | True pleasure is not debauchery, but freedom from physical and mental pain [Epicurus] |
Full Idea: When we say that pleasure is the chief good, we do not mean debauchery, but freedom of the body from pain, and of the soul from confusion…. which requires sober contemplation. | |
From: Epicurus (Letter to Menoeceus [c.291 BCE], 131), quoted by Diogenes Laertius - Lives of Eminent Philosophers 10.27 | |
A reaction: I'm not clear how lack of pain and confusion counts as pleasure. Also the concepts of debauchery held by the puritan and the sybarite are wildly different. |
14056 | We only need pleasure when we have the pain of desire [Epicurus] |
Full Idea: We are in need of pleasure only when we are in pain because of the absence of pleasure, and when we are not in pain, then we no longer need pleasure. | |
From: Epicurus (Letter to Menoeceus [c.291 BCE], 128) | |
A reaction: This Buddhist aspiration to eliminate desire has no appeal for me. It just sounds like a recipe for boredom, and an aversion to risk-taking. Start by asking what is best in life; it inevitably involves pleasure of some sort. Anyway, desire isn't painful. |
14060 | Prudence is the greatest good, and more valuable than philosophy, because it produces virtue [Epicurus] |
Full Idea: Prudence is the principle of the rational life and is the greatest good. That is why prudence is more valuable than philosophy, for prudence is the source of all the other virtues. | |
From: Epicurus (Letter to Menoeceus [c.291 BCE], 132) | |
A reaction: ['prudence' will be Greek 'phronesis']The interest of this is that it is almost copied straight out of Aristotle's Ethics. Epicurus was an opponent of the Peripatetics, but greatly influenced by them. |