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All the ideas for 'Scientific Explanation', 'Letter to Herodotus' and 'Contemporary Political Philosophy (2nd edn)'

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48 ideas

1. Philosophy / F. Analytic Philosophy / 5. Linguistic Analysis
If we are to use words in enquiry, we need their main, unambiguous and uncontested meanings [Epicurus]
     Full Idea: It is necessary that we look to the primary conception corresponding to each word and that it stand in no need of demonstration, if, that is, we are going to have something to which we can refer the object of search or puzzlement and opinion.
     From: Epicurus (Letter to Herodotus [c.293 BCE], 38)
     A reaction: This either points to definition or to consensus, and since definition seems in danger of some sort of Quinean circularity, I favour consensus. Philosophy is, after all, people discussing things, not inscriptions sent to the gods.
2. Reason / F. Fallacies / 4. Circularity
One sort of circularity presupposes a premise, the other presupposes a rule being used [Braithwaite, by Devitt]
     Full Idea: An argument is 'premise-circular' if it aims to establish a conclusion that is assumed as a premise of that very argument. An argument is 'rule-circular' if it aims to establish a conclusion that asserts the goodness of the rule used in that argument.
     From: report of R.B. Braithwaite (Scientific Explanation [1953], p.274-8) by Michael Devitt - There is no a Priori §2
     A reaction: Rule circularity is the sort of thing Quine is always objecting to, but such circularities may be unavoidable, and even totally benign. All the good things in life form a mutually supporting team.
3. Truth / A. Truth Problems / 8. Subjective Truth
Observation and applied thought are always true [Epicurus]
     Full Idea: Everything that is observed or grasped by the intellect in an act of application is true.
     From: Epicurus (Letter to Herodotus [c.293 BCE], 62)
     A reaction: Not quite clear what he means, but Epicurus is committed to perception as the source of knowledge, with the intellect extending the findings of the senses. He might subscribe to Descartes's 'clear and distinct' perceptions.
7. Existence / A. Nature of Existence / 1. Nature of Existence
Nothing comes to be from what doesn't exist [Epicurus]
     Full Idea: Nothing comes into being from what is not.
     From: Epicurus (Letter to Herodotus [c.293 BCE], 38)
     A reaction: King Lear puts it better: Nothing will come of nothing [1.i]. There seems to be an underlying assumption that coming into being out of nothing is much weirder than just existing, but I am not convinced about that. It's all equally weird.
If disappearing things went to nothingness, nothing could return, and it would all be gone by now [Epicurus]
     Full Idea: If that which disappears were destroyed into what is not, all things would have been destroyed, since that into which they were dissolved does not exist.
     From: Epicurus (Letter to Herodotus [c.293 BCE], 39)
     A reaction: This follows on from Idea 14028. Theologians will immediately spot that this is the underlying principle cited by Aquinas in his Third Way for proving God's existence (Idea 1431).
7. Existence / B. Change in Existence / 1. Nature of Change
The totality is complete, so there is no room for it to change, and nothing extraneous to change it [Epicurus]
     Full Idea: The totality of things has always been just like it is now and always will be. For there is nothing for it to change into. For there exists nothing in addition to the totality, which could enter into it and produce the change.
     From: Epicurus (Letter to Herodotus [c.293 BCE], 39)
     A reaction: This smacks of the sort of dubious arguments that the medieval theologians fell in love with. I never thought I'd say this, but I think Epicurus needs a comprehensive course in set theory before he makes remarks like this.
7. Existence / D. Theories of Reality / 6. Physicalism
Astronomical movements are blessed, but they don't need the help of the gods [Epicurus]
     Full Idea: Movements, turnings, risings, settings, and related phenomena occur without any god helping out and ordaining or being about to ordain things, and at the same time have complete blessedness and indestructibility.
     From: Epicurus (Letter to Herodotus [c.293 BCE], 76)
     A reaction: Epicurus is sometimes accused of atheism for remarks like these, but he is always trying to show piety in his attitudes. We might now call this attitude 'deism' (see alphabetical themes).
8. Modes of Existence / B. Properties / 8. Properties as Modes
The perceived accidental properties of bodies cannot be conceived of as independent natures [Epicurus]
     Full Idea: The shapes, colours, sizes and weights which are predicated of body as accidents, ...and are known by sense-perception, must not be thought of as independent natures (for that is inconceivable).
     From: Epicurus (Letter to Herodotus [c.293 BCE], 68)
     A reaction: I take this to be an anti-platonist remark, though he is not denying that the accidental properties may have some universal character. I'm struck by how close the basic metaphysics of Epicurus is to that of Aristotle.
Accidental properties give a body its nature, but are not themselves bodies or parts of bodies [Epicurus]
     Full Idea: Accidental qualities are not non-existent, nor are they distinct corporeal entities inhering in the body, nor parts of it. We should think that the whole body throughout derives its permanent nature from these properties, though not as a compound of them.
     From: Epicurus (Letter to Herodotus [c.293 BCE], 69)
     A reaction: 'Permanent' nature sounds more like essential than accidental properties. This is uncomfortably negative in its attempt to pin down what accidental properties are. The last bit seems to deny the bundle view of objects. Would he like tropes?
9. Objects / B. Unity of Objects / 1. Unifying an Object / b. Unifying aggregates
A 'body' is a conception of an aggregate, with properties defined by application conditions [Epicurus]
     Full Idea: Properties are known by their peculiar forms of application and comprehension, in close accompaniment with the aggregate [of atoms], which is given the predicate 'body' by reference to the aggregate conception.
     From: Epicurus (Letter to Herodotus [c.293 BCE], 69)
     A reaction: There is an interesting hint here of how to think of properties (as both applying and comprehended in some distinctive way), and a suggestion that there is something conventional about bodies, depending on how we conceive them.
9. Objects / D. Essence of Objects / 9. Essence and Properties
Bodies have impermanent properties, and permanent ones which define its conceived nature [Epicurus]
     Full Idea: Impermanent properties do not have the nature of an entire thing, which we call a body when we grasp it in aggregate, nor the nature of permanent accompaniments without which it is not possible to conceive of a body.
     From: Epicurus (Letter to Herodotus [c.293 BCE], 70)
     A reaction: Epicurus doesn't discuss essences, but this seems to commit to the basic Aristotelian idea, that there there are some properties which actually bestow identity, and then others which are optional for that thing. The 'conception' is always mentioned.
10. Modality / D. Knowledge of Modality / 4. Conceivable as Possible / c. Possible but inconceivable
Above and below us will never appear to be the same, because it is inconceivable [Epicurus]
     Full Idea: What is over our heads ...or what is below any point which we think of ...will never appear to us as being at the same time and in the same respect both up and down. For it is impossible to conceive of this.
     From: Epicurus (Letter to Herodotus [c.293 BCE], 60)
     A reaction: Note that he says it will 'never appear to us' as both - not that it absolutely cannot be both. Both Aristotle and Epicurus are much more focused on how our humanity shapes our metaphysics than the modern pure metaphysicians are.
11. Knowledge Aims / A. Knowledge / 4. Belief / c. Aim of beliefs
We aim to dissolve our fears, by understanding their causes [Epicurus]
     Full Idea: If we give a correct and complete causal account of the source of our disturbance and fears, we will dissolve them, by accounting for the phenomena to which we are constantly exposed, and which terrify other men most severely.
     From: Epicurus (Letter to Herodotus [c.293 BCE], 82)
     A reaction: Notice 'other' men! This eudaimonist aim lies at the heart of Epicurus's physical account of the world. He was primarily interested in living better, rather than in physical science. He seeks 'tranquillity' and 'freedom from disturbance'.
12. Knowledge Sources / B. Perception / 2. Qualities in Perception / c. Primary qualities
Atoms only have shape, weight and size, and the properties which accompany shape [Epicurus]
     Full Idea: One must believe that the atoms bring with them none of the qualities of things which appear except shape, weight, and size and the properties which necessarily accompany shape.
     From: Epicurus (Letter to Herodotus [c.293 BCE], 54)
     A reaction: This appears to be fairly precisely a claim that atoms only have primary qualities, though that terminology only came in in the seventeenth century. I take the view to be more or less correct.
13. Knowledge Criteria / D. Scepticism / 3. Illusion Scepticism
Illusions are not false perceptions, as we accurately perceive the pattern of atoms [Epicurus, by Modrak]
     Full Idea: Epicurus says illusions are not false perceptions, because the senses accurately report the pattern of atoms; for instance, the edges are worn off the pattern produced by a square tower, so its perception as a round tower is true.
     From: report of Epicurus (Letter to Herodotus [c.293 BCE], 47-53) by Deborah K.W. Modrak - Classical theories of Mind
     A reaction: As so often, Epicurus got it right, because Democritus got it right, thus demonstrating that good philosophy must be preceded by good physics. However, good physics must be preceded and followed by good philosophy.
15. Nature of Minds / A. Nature of Mind / 2. Psuche
The soul is fine parts distributed through the body, resembling hot breath [Epicurus]
     Full Idea: The soul is a body made up of fine parts distributed throught the entire aggregate, most closely resembling breath with a certain admixture of heat, in one way resembling breath and in another resembling heat
     From: Epicurus (Letter to Herodotus [c.293 BCE], 63)
     A reaction: Remember that 'psuché' refers as much to the life within a creature as it does to the consciousness. The stoics seem to have held a similar view.
17. Mind and Body / E. Mind as Physical / 5. Causal Argument
The soul cannot be incorporeal, because then it could neither act nor be acted upon [Epicurus]
     Full Idea: Those who say that the soul is incorporeal are speaking to no point; for if it were of that character, it could neither act nor be acted upon at all.
     From: Epicurus (Letter to Herodotus [c.293 BCE], 67)
     A reaction: This just is the causal argument, which is espoused by Papineau and other modern physicalists. Personally I am inclined to agree with Papineau, that it is so simple and conclusive that it is hardly worth discussing further. Dualism needs a miracle.
24. Political Theory / B. Nature of a State / 4. Citizenship
Some liberals thinks checks and balances are enough, without virtuous citizens [Kymlicka]
     Full Idea: Many classical liberals believed that a liberal democracy could function effectively even in the absence of an especially virtuous citizenry, by creating checks and balances. …One set of private interests would check another set of private interests.
     From: Will Kymlicka (Contemporary Political Philosophy (2nd edn) [2002], 7)
     A reaction: This seems to be the view of those who think a completely free market will evolve into a flourishing and just society. There is a basic debate about the importance of the character of the citizens in any polity. Marxists say they are entangled.
Good citizens need civic virtues of loyalty, independence, diligence, respect, etc. [Kymlicka]
     Full Idea: Galston says responsible citizenship requires four types of civic virtue: general (law-abiding, loyal), social (independent, open-minded), economic (diligent, restrained, adaptable), and political (respect, sensible, judgement, engagement).
     From: Will Kymlicka (Contemporary Political Philosophy (2nd edn) [2002], 7)
     A reaction: [Galston's 'Liberal Purposes' 1991] (compressed) This immediately seems to be asking too much, especially for those who know little, or are short of money.
Liberals accept that people need society, but Aristotelians must show that they need political activity [Kymlicka]
     Full Idea: To defend Aristotelian republicanism it is not enough to show that individual require society - liberals do not deny this. They must also show that individuals need to be politically active.
     From: Will Kymlicka (Contemporary Political Philosophy (2nd edn) [2002], 7)
     A reaction: Interesting. People are not just inactive because they have been rendered powerless. In any group of people there are some who are keen to have a voice, or lead, and others who are largely happy to follow.
Minimal liberal citizenship needs common civility, as well as mere non-interference [Kymlicka]
     Full Idea: Minimal citizenship is often seen as simply requiring non-interference with others, but that ignores a basic requirement of liberal citizenship, which is the social virtue of 'civility' or 'decency'.
     From: Will Kymlicka (Contemporary Political Philosophy (2nd edn) [2002], 7)
     A reaction: He makes the point that the minimal requirement has to be given up when there is a crisis, which needs much more involvement. This largely describes modern Britain, prior to the Brexit rift.
Modern non-discrimination obliges modern citizens to treat each other as equals [Kymlicka]
     Full Idea: The extension of non-discrimination from government to civil society …involves a radical extension of the obligations of liberal citizenship. The obligation to treat people as equal citizens now applies to everyday decisions.
     From: Will Kymlicka (Contemporary Political Philosophy (2nd edn) [2002], 7)
     A reaction: This is very difficult for an older generation who felt their 'entitlement' as leading citizens, or who routinely favoured their local traditional community. But they just have to 'get over it'!
The right wing sees citizenship in terms of responsibility to earn a living, rather than rights [Kymlicka]
     Full Idea: According to the New Right, to promote active citizenship-for-all or entitlements, we must focus instead on people's responsibility to earn a living.
     From: Will Kymlicka (Contemporary Political Philosophy (2nd edn) [2002], 7)
     A reaction: Every creature has to earn a living, but one method is to successfully sponge off others. A cushy job is a sort of sponging. An excessively well paid job is a sort of sponging. Citizenship must involve responsibilities of some sort.
24. Political Theory / D. Ideologies / 5. Democracy / a. Nature of democracy
Modern democratic theory focuses on talk, not votes, because we need consensus or compromise [Kymlicka]
     Full Idea: Modern discussion has shifted from 'vote-centric' (or 'aggregative') to 'talk-centric' democracy. The vote-centric model has no mechanism for developing a consensus, or shaping public opinion, or even formulating an honourable compromise.
     From: Will Kymlicka (Contemporary Political Philosophy (2nd edn) [2002], 7)
     A reaction: I'm struck by the fact that a person's preferences betweent these two is a reflection of character, or basic attitudes to morality. Some people think democratically about their relationships, and others very obviously don't.
24. Political Theory / D. Ideologies / 6. Liberalism / a. Liberalism basics
In a liberal democracy all subjects of authority have a right to determine the authority [Kymlicka]
     Full Idea: A liberal-democratic system is one in which those people who are subject to political authority have a right to participate in determining that authority.
     From: Will Kymlicka (Contemporary Political Philosophy (2nd edn) [2002], 8.4)
     A reaction: This applies to immigrants. The most anti-democratic move in recent democracies is the strategy of trying to make it more difficult to vote, perhaps by demanding identification documents, or creating huge queues.
24. Political Theory / D. Ideologies / 6. Liberalism / b. Liberal individualism
We have become attached to private life because that has become greatly enriched [Kymlicka]
     Full Idea: Our attachment to private life, I believe, is the result not (or not only) of the impoverishment of public life, but the enrichment of private life.
     From: Will Kymlicka (Contemporary Political Philosophy (2nd edn) [2002], 7)
     A reaction: Interesting. Perhaps a sentiment expected more from a university lecturer than from a poorly-paid labourer. Does he mean watching innumerable TV shows instead of having sing-songs in the local pub? Increased leisure is indisputable.
24. Political Theory / D. Ideologies / 6. Liberalism / e. Liberal community
Liberals must avoid an official culture, as well as an official religion [Kymlicka]
     Full Idea: Just as liberalism precludes the establishment of an official religion, so too there cannot be official cultures that have preferred status.
     From: Will Kymlicka (Contemporary Political Philosophy (2nd edn) [2002], 8.3)
     A reaction: This becomes tricky in schools, where the old way of teaching national literature and particular types of music has been eroded in modern times. But once wide diversity is allowed there is no single story which can be taught.
Liberals need more than freedom; they must build a nation, through a language and institutions [Kymlicka]
     Full Idea: Liberals need to replace the idea of 'benign neglect', and recognise the central role of nation-building in a democracy. …This means promoting a common language, and equal access to institutions operating in that language.
     From: Will Kymlicka (Contemporary Political Philosophy (2nd edn) [2002], 8.3)
     A reaction: 'Benign neglect' is non-interference with citizens' lives. Obviously the institutions include education, but is a state health service implied? Can equal access by guaranteed to private institutions?
24. Political Theory / D. Ideologies / 6. Liberalism / f. Multiculturalism
Some individuals can gain citizenship as part of a group, rather than as mere individuals [Kymlicka]
     Full Idea: On the view of 'differentiated citizenship', members of certain groups would be incorporated into the community, not only as individuals, but also through the group, and their rights would depend in part on their group membership.
     From: Will Kymlicka (Contemporary Political Philosophy (2nd edn) [2002], 8)
     A reaction: This is obviously a strategy to enable marginalised individuals to be fully included in society. The downside is that individuals gain their social identity through a label, rather than through themselves, which pure liberals dislike. 'Identity politics'.
The status hierarchy is independent of the economic hierarchy [Kymlicka]
     Full Idea: The evidence suggests that (contrary to the Marxist view) the status hierarchy is not reducible to the economic hierarchy.
     From: Will Kymlicka (Contemporary Political Philosophy (2nd edn) [2002], 8)
     A reaction: Kymlicka is particularly thinking of racism, which lowers the status of certain groups, even if they are economically successful. I console myself for my modest economic status by getting lots of education.
Some multiculturalists defended the rights of cohesive minorities against liberal individualism [Kymlicka]
     Full Idea: Defending multiculturalism initially involved endorsing the communitarian critique of liberalism, and viewed minority rights as defending cohesive minority groups against the encroachment of liberal individualism.
     From: Will Kymlicka (Contemporary Political Philosophy (2nd edn) [2002], 8.1)
     A reaction: Liberal individualists have to accept these criticisms from Marxists, communitarians and multiculturalists. The lone individual has no group that guarantees support, and individuals (especially the young) can easily sink.
'Culturalist' liberals say that even liberal individuals may need minority rights [Kymlicka]
     Full Idea: The 'liberal culturalist' position is that minorities which share basic liberal principles nonetheless need minority rights.
     From: Will Kymlicka (Contemporary Political Philosophy (2nd edn) [2002], 8.2)
     A reaction: Disabled liberals are an obvious example. This strikes me as a promising version of liberalism, which accepts the criticisms of extreme individualism.
Multiculturalism may entail men dominating women in minority groups [Kymlicka]
     Full Idea: Many feminists express concern that multiculturalism in practice typically means giving male members of the group the power to control the women in the group.
     From: Will Kymlicka (Contemporary Political Philosophy (2nd edn) [2002], 8.2)
     A reaction: The way the young are treated might also be a problem. The underlying question is whether the minority group is more or less civilised than the central state. Liberalism always fights for the rights of the least powerful.
Liberals must prefer minority right which are freedoms, not restrictions [Kymlicka]
     Full Idea: Liberal defenders of multiculturalism must distinguish 'bad' minority rights which are restrictions from 'good' minority rights which supplement individual rights.
     From: Will Kymlicka (Contemporary Political Philosophy (2nd edn) [2002], 8.2)
     A reaction: Presumably no sensible liberal wants to remove all restrictions, so deeper values must be invoked to justify the mode of approved minority rights. A list of human goods seems needed.
Why shouldn't national minorities have their own right to nation-build? [Kymlicka]
     Full Idea: Why should national minorities not have the same powers of nation-building as the majority?
     From: Will Kymlicka (Contemporary Political Philosophy (2nd edn) [2002], 8.4)
     A reaction: A 'national minority' is marked by a different language, or a different religion, or both. No one doubts the majority's right to nation-build. Some further principle would be needed to deny that right to a minority. Maybe the minority was there first?
Multiculturalism is liberal if it challenges inequality, conservative if it emphasises common good [Kymlicka]
     Full Idea: Liberal multiculturalism challenges status inequalities while preserving individual freedom. …Conservative multiculturalism replaces liberal principles with a communitarian politics of the common good, at least at the local or group level.
     From: Will Kymlicka (Contemporary Political Philosophy (2nd edn) [2002], 8.6)
     A reaction: [compressed] This sounds a bit simplistic. Recent emphasis on 'the common good', in the face of white supremacists etc., seems admirable, but surely challenging inequalities promotes the common good? Minority cultures are often conservative.
25. Social Practice / C. Rights / 1. Basis of Rights
Rights are a part of nation-building, to build a common national identity and culture [Kymlicka]
     Full Idea: Extending citizenship to include common social rights was a tool of nation-building, intended in part to construct and consolidate a sense of common national identity and culture.
     From: Will Kymlicka (Contemporary Political Philosophy (2nd edn) [2002], 8)
     A reaction: Kymlicka explains a lot of politics and society in terms of the desire of governments to 'build' their nation. You have to make people who are essentially powerless feel that they are at least in some way involved, and benefiting.
Rights derived from group membership are opposed to the idea of state citizenship [Kymlicka]
     Full Idea: The organisation of society on the basis of rights or claims that derive from group membership is sharply opposed to the concept of society based on citizenship.
     From: Will Kymlicka (Contemporary Political Philosophy (2nd edn) [2002], 8)
     A reaction: [from John Porter 1987] Does this imply that you might have rights as part of a group which you don't have as a state citizen? Positive discrimination, for example. Differential rights sounds like potential trouble.
25. Social Practice / E. Policies / 3. Welfare provision
The welfare state helps to integrate the working classes into a national culture [Kymlicka]
     Full Idea: The development of the welfare state has been quite successful in integrating the working classes into national cultures throughout the Western democracies.
     From: Will Kymlicka (Contemporary Political Philosophy (2nd edn) [2002], 8)
     A reaction: Hard-line capitalists tend to hate the welfare state, as unfair to high earners, but it not only makes workers feel involved, but also provides a healthier, happier, more knowledgeable work force for employers.
26. Natural Theory / A. Speculations on Nature / 5. Infinite in Nature
Totality has no edge; an edge implies a contrast beyond the edge, and there can't be one [Epicurus]
     Full Idea: The totality is unlimited. For what is limited has an extreme; but an extreme is seen in contrast to something else, so that since it has no extreme it has no limit.
     From: Epicurus (Letter to Herodotus [c.293 BCE], 41)
     A reaction: I presume that the 'limit' is the edge, and the 'extreme' is what is beyond the edge. Why could not the extreme be nothingness, which then contrast dramatically with what exists?
Bodies are unlimited as well as void, since the two necessarily go together [Epicurus]
     Full Idea: The number of bodies and the magnitude of the void are unlimited. If void were unlimited, and bodies limited, bodies move in scattered fashion with no support of checking collisions; in limited void, unlimited bodies would not have a place to be in.
     From: Epicurus (Letter to Herodotus [c.293 BCE], 42)
     A reaction: Seems good. The point is that without collisions, bodies would not stop relative to one another, and combine to form the objects we perceive. Of course if the started off (anathema!) stuck together, they may not have dispersed yet.
26. Natural Theory / A. Speculations on Nature / 6. Early Matter Theories / g. Atomism
There exists an infinity of each shape of atom, but the number of shapes is beyond our knowledge [Epicurus]
     Full Idea: For each type of shape there is an unlimited number of similar atoms, but with respect to the differences they are not simply unlimited but ungraspable.
     From: Epicurus (Letter to Herodotus [c.293 BCE], 42)
     A reaction: Epicurus's view of the nature of atoms rests on his empiricism, so while he can reason from experience to how they must be, he admits (impressively) his ignorance of the full facts. He has arguments for the unlimited number.
Atoms just have shape, size and weight; colour results from their arrangement [Epicurus]
     Full Idea: There are not even any qualities in atoms, except shape and size and weight; their colour changes according to the arrangement of the atoms.
     From: Epicurus (Letter to Herodotus [c.293 BCE], 44 schol)
     A reaction: [This is quoted by a 'scholiast' - an early writer quoting from Epicurus's '12 Basic Principles'] He appears to have got this one wrong, as it is evidently the type of atom, as well as the arrangement, which contributes to the colour.
There cannot be unlimited division, because it would reduce things to non-existence [Epicurus]
     Full Idea: One must eliminate unlimited division into smaller pieces (to avoid making everything weak and being forced in our comprehensive grasps of compound things to exhaust the things which exist by reducing them to non-existence).
     From: Epicurus (Letter to Herodotus [c.293 BCE], 56)
     A reaction: A basic argument for atoms, but it seems to rest on Zenonian paradoxes about infinite subdivision. An infinite subdivision of a unit doesn't seem to turn it into zero.
26. Natural Theory / D. Laws of Nature / 8. Scientific Essentialism / a. Scientific essentialism
We aim to know the natures which are observed in natural phenomena [Epicurus]
     Full Idea: Blessedness lies in knowing the natures which are observed in meteorological phenomena.
     From: Epicurus (Letter to Herodotus [c.293 BCE], 78)
     A reaction: This pursuit of 'natures' seems to be at the heart of scientific essentialism. Epicurus demonstrates his proposal, by offering speculations about the natures of all sorts of phenomena (esp. in 'Letter to Pythocles').
27. Natural Reality / C. Space / 1. Void
The void cannot interact, but just gives the possibility of motion [Epicurus]
     Full Idea: The void can neither act nor be acted upon but merely provides the possibility of motion through itself for bodies.
     From: Epicurus (Letter to Herodotus [c.293 BCE], 67)
     A reaction: Epicurus follows this with the anti-dualist Idea 14042, but he is at least offering the notion of something which exists without powers of causal interaction. Does space undermine the causal criterion for existence?
27. Natural Reality / C. Space / 4. Substantival Space
Space must exist, since movement is obvious, and there must be somewhere to move in [Epicurus]
     Full Idea: If there did not exist that which we call void and space and intangible nature, bodies would not have any place to be in or move through, as they obviously do move.
     From: Epicurus (Letter to Herodotus [c.293 BCE], 40)
     A reaction: The observation that 'they obviously do move' must be aimed at followers of Parmenides. The idea of the void seems to contain a Newtonian commitment to absolute space.
27. Natural Reality / E. Cosmology / 10. Multiverse
There are endless cosmoi, some like and some unlike this one [Epicurus]
     Full Idea: There is an unlimited number of cosmoi, and some are similar to this one and some are dissimilar.
     From: Epicurus (Letter to Herodotus [c.293 BCE], 45)