76 ideas
| 5728 | The concept of truth was originated by the senses [Lucretius] |
| Full Idea: The concept of truth was originated by the senses. | |
| From: Lucretius (On the Nature of the Universe [c.60 BCE], IV.479) | |
| A reaction: This is a refreshing challenge to the modern view of truth, which seems entirely entangled with language. Truth seems a useful concept when discussing the workings of an animal mind. As you get closer to an object, you see it more 'truly'. |
| 4266 | Having beliefs involves recognition, expectation and surprise [Scruton] |
| Full Idea: With the concept of belief (e.g. in animals) comes recognition, expectation and surprise. | |
| From: Roger Scruton (Animal Rights and Wrongs [1996], p.15) | |
| A reaction: A good observation. It is always tempting to see mental faculties in isolation, but each one drags along other capacities with it. Looks a bit holistic. |
| 4265 | If an animal has beliefs, that implies not only that it can make mistakes, but that it can learn from them [Scruton] |
| Full Idea: To say that an animal has beliefs is to imply not just that it can make mistakes, but also that it can learn from them. | |
| From: Roger Scruton (Animal Rights and Wrongs [1996], p.15) | |
| A reaction: A bold claim which is hard to substantiate. Seems right, though. Why would they change a belief? It can't be a belief if it isn't changeable. That would be an instinct. |
| 4264 | Perception (which involves an assessment) is a higher state than sensation [Scruton] |
| Full Idea: Perception is a higher state than sensation: it involves not just a response to the outer world, but also an assessment of it. | |
| From: Roger Scruton (Animal Rights and Wrongs [1996], p.14) | |
| A reaction: This seems to me a simple but really important distinction, even though it wickedly uses the word 'higher', which Greeks like but post-Humeans struggle with. But we all know it is higher, don't we? |
| 5729 | If the senses are deceptive, reason, which rests on them, is even worse [Lucretius] |
| Full Idea: The structure of your reasoning must be rickety and defective, if the senses on which it rests are themselves deceptive. | |
| From: Lucretius (On the Nature of the Universe [c.60 BCE], IV.518) | |
| A reaction: This strikes me as one of the most basic tenets of empiricism. It denies the existence of 'pure' reason, and instead asserts that it is built out of complex and abstracted sense experience, which makes it ultimately a second-class citizen. |
| 5702 | The senses are much the best way to distinguish true from false [Lucretius] |
| Full Idea: What can be a surer guide to the distinction of true from false than our own senses? | |
| From: Lucretius (On the Nature of the Universe [c.60 BCE], I.700) | |
| A reaction: This doesn't say they are the only guide, which leaves room for guides such as what is consistent or self-evident or inferred. There is enough here, though, to show that the Epicureans were empiricists in a fairly modern way. |
| 5697 | The only possible standard for settling doubts is the foundation of the senses [Lucretius] |
| Full Idea: If a belief resting directly on the foundation of the senses is not valid, there will be no standard to which we can refer any doubt on obscure questions for rational confirmation. | |
| From: Lucretius (On the Nature of the Universe [c.60 BCE], I.422) | |
| A reaction: A classic statement of empiricist foundationalism. The Epicureans don't appear to have any time for a priori truths at all. I wonder if they settled mathematical disputes by counting objects and drawing diagrams? |
| 5727 | Most supposed delusions of the senses are really misinterpretations by the mind [Lucretius] |
| Full Idea: Paradoxical experiences (such a dreams and illusions) cannot shake our faith in the senses. Most of the illusion is due to the mental assumptions we ourselves superimpose, so that things not perceived by the senses pass for perceptions. | |
| From: Lucretius (On the Nature of the Universe [c.60 BCE], IV.462) | |
| A reaction: Some misinterpretations of the senses, such as thinking a square tower round, are the result of foolish lack of judgement, but actual delusions within the senses, such as a ringing in the ears, or a pain in a amputated leg, seem like real sense failures. |
| 5714 | Even simple facts are hard to believe at first hearing [Lucretius] |
| Full Idea: No fact is so simple that it is not harder to believe than to doubt at the first presentation. | |
| From: Lucretius (On the Nature of the Universe [c.60 BCE], II.1022) | |
| A reaction: Hence induction is just 'drumming it in' until you come to believe it. There are good evolutionary reasons why we should be like this, because we would otherwise believe all sorts of silly half-perceptions in the gloaming. |
| 5718 | The mind is in the middle of the breast, because there we experience fear and joy [Lucretius] |
| Full Idea: The guiding principle of the whole body is the mind or intellect, which is firmly lodged in the mid-region of the breast. Here is felt fear and alarm, and the caressing pulse of joy. Here, then is the seat of the intellect and mind. | |
| From: Lucretius (On the Nature of the Universe [c.60 BCE], III.140) | |
| A reaction: Even by this date thinking people were not clear that the mind is in the brain. They paid insufficient attention to head injuries. The emotions are felt to have a location, but intellect and principles are not. |
| 5717 | The mind is a part of a man, just like a hand or an eye [Lucretius] |
| Full Idea: First, I maintain that the mind, which we often call the intellect, the seat of guidance and control of life, is part of a man, no less than hand or foot or eyes are parts of a whole living creature. | |
| From: Lucretius (On the Nature of the Universe [c.60 BCE], III.95) | |
| A reaction: Presumably Lucretius asserts this because some people were denying it. Sounds like common sense to me. The only reason I can see for anyone denying what he says is if they are desperate to survive death. |
| 21387 | The separate elements and capacities of a mind cannot be distinguished [Lucretius] |
| Full Idea: No single element [of the soul] can be separated, nor can their capacities be divided spatially; they are like the multiple powers of a single body | |
| From: Lucretius (On the Nature of the Universe [c.60 BCE], III.262), quoted by A.A. Long - Hellenistic Philosophy 2.7 | |
| A reaction: It is interesting that this comes from someone with a strongly physicalist view of the mind (though not, if I recall, focusing on the brain). He is still totally impressed by the unified phenomenology of mental experience. He is an empiricist. |
| 4271 | There is consciousness whenever behaviour must be explained in terms of mental activity [Scruton] |
| Full Idea: There is consciousness whenever behaviour must be explained in terms of mental activity. | |
| From: Roger Scruton (Animal Rights and Wrongs [1996], p.23) | |
| A reaction: Not a point that would trouble an eliminativist, as it sounds suspiciously circular or question-begging. |
| 4272 | Our concept of a person is derived from Roman law [Scruton] |
| Full Idea: Our concept of a person is derived from Roman law. | |
| From: Roger Scruton (Animal Rights and Wrongs [1996], p.28) | |
| A reaction: Interesting. I don't believe Roman legislators invented it, so where did it originate? Interesting that it is legalistic - a thing to which rights can accrue. Compare character, to which virtues accrue. |
| 5709 | The actions of the mind are not determinate and passive, because atoms can swerve [Lucretius] |
| Full Idea: The fact that the mind itself has no internal necessity to determine its every act and compel it to suffer in helpless passivity - this is due to the slight swerve of the atoms at no determinate time or place. | |
| From: Lucretius (On the Nature of the Universe [c.60 BCE], II.294) | |
| A reaction: No one likes this proposal much, but it is very intriguing. The Epicureans had seen a problem, one which doesn't bother me much. If, nowadays, you are a reductive physicalist who believes in free will, you have a philosophical nightmare ahead of you. |
| 5695 | Only bodies can touch one another [Lucretius] |
| Full Idea: Nothing can touch or be touched except body. | |
| From: Lucretius (On the Nature of the Universe [c.60 BCE], I.303) | |
| A reaction: This is the key objection to interactionism, and the main reason why the atomists have a thoroughly material view of the mind. It is an induction from a very large number of instances, but the argument is not, of course, conclusive. |
| 5711 | The earth is and always has been an insentient being [Lucretius] |
| Full Idea: The earth is and always has been an insentient being. | |
| From: Lucretius (On the Nature of the Universe [c.60 BCE], II.658) | |
| A reaction: The fact that Epicurus needs to deny this shows that some idea close to panpsychism must still have been around in his time. He is discussing gods at the time, so maybe pantheism was the view being attacked, but that is a subset of panpsychism. |
| 5712 | Particles may have sensation, but eggs turning into chicks suggests otherwise [Lucretius] |
| Full Idea: There is the possibility that particles have senses like those of an animate being as a whole, …but from the fact that we perceive eggs turning into live fledglings, we may infer that sense can be generated from the insentient. | |
| From: Lucretius (On the Nature of the Universe [c.60 BCE], II.914) | |
| A reaction: He gives other arguments for his view. The egg example is not a strong argument, but is precisely our puzzle of how consciousness can emerge from the process of evolution, and natural selection makes dualism look unlikely. |
| 4267 | Conditioning may change behaviour without changing the mind [Scruton] |
| Full Idea: Conditioning involves a change of behaviour, but not necessarily a change of mind. | |
| From: Roger Scruton (Animal Rights and Wrongs [1996], p.16) | |
| A reaction: I am inclined to doubt this. If I was conditioned in some way, I would expect my conscious state to change as well as my behaviour. |
| 5719 | The mind moves limbs, wakes the body up, changes facial expressions, which involve touch [Lucretius] |
| Full Idea: Mind and spirit are both composed of matter, as we see them propelling limbs, rousing the body from sleep, changing the expression of the face, and guiding the whole man - activities which clearly involves touch, which involves matter. | |
| From: Lucretius (On the Nature of the Universe [c.60 BCE], III.164) | |
| A reaction: This is the inverse of Descartes' interaction problem, and strikes me as a straightforward common sense truth. However, if you believe in spiritual gods, this gives you a model for the interaction (however mysterious) of matter and spirit. |
| 5724 | Lions, foxes and deer have distinct characters because their minds share in their bodies [Lucretius] |
| Full Idea: Why are lions ferocious, foxes crafty, and deer timid? It can only be because the mind always shares in the specific growth of the body according to its seed and breed. If it were immortal and reincarnated, living things would have jumbled characters. | |
| From: Lucretius (On the Nature of the Universe [c.60 BCE], III.743) | |
| A reaction: A nice argument which I have not encountered in modern times. Of course, even Descartes admits that the mind is intermingled with the body, but it seems that the essential character of a mind is dictated by the body. |
| 5713 | You needn't be made of laughing particles to laugh, so why not sensation from senseless seeds? [Lucretius] |
| Full Idea: One can laugh without being composed of laughing particles, ..so why cannot the things that we see gifted with sensation be compounded of seeds that are wholly senseless? | |
| From: Lucretius (On the Nature of the Universe [c.60 BCE], II.988) | |
| A reaction: Lovely argument! You might feel driven to panpsychism in your desperation to explain the 'weirdness' of consciousness, but it would be mad to attribute laughter to basic matter, so comedy has to 'emerge' at some point. |
| 4269 | An emotion is a motive which is also a feeling [Scruton] |
| Full Idea: An emotion is a motive which is also a feeling. | |
| From: Roger Scruton (Animal Rights and Wrongs [1996], p.17) | |
| A reaction: What is a motive without feeling? A universalised judgment, perhaps. Which comes first, the motivation or the feeling? |
| 4270 | Do we use reason to distinguish people from animals, or use that difference to define reason? [Scruton] |
| Full Idea: The difficulty of defining reason suggests that while pretending to use it to define the difference between humans and animals, they are actually using that difference to define reason. | |
| From: Roger Scruton (Animal Rights and Wrongs [1996], p.19) | |
| A reaction: Too pessimistic. We are perfectly capable of saying there is no significant difference between us and an alien. We have obvious abilities, which we can partly specify. |
| 6611 | One man's meat is another man's poison [Lucretius] |
| Full Idea: What is food to one may be literally poison to others. | |
| From: Lucretius (On the Nature of the Universe [c.60 BCE], IV.638) | |
| A reaction: This seems to be the origin of the well-known saying. This is not relativism of perception, but a relativism of how individuals actually respond to the world. It sums up the position with, say, the operas of Wagner. |
| 468 | Musical performance can reveal a range of virtues [Damon of Ath.] |
| Full Idea: In singing and playing the lyre, a boy will be likely to reveal not only courage and moderation, but also justice. | |
| From: Damon (fragments/reports [c.460 BCE], B4), quoted by (who?) - where? |
| 4284 | All moral life depends ultimately on piety, which is our recognition of our own dependence [Scruton] |
| Full Idea: The three forms of moral life (respect for persons, the pursuit of virtue and natural sympathy) all depend, in the last analysis, on piety, which is the deep-down recognition of our frailty and dependence. | |
| From: Roger Scruton (Animal Rights and Wrongs [1996], p.56) | |
| A reaction: MacIntyre agrees. 'Piety' is an odd word, which attempts to link the point to religious teachings. 'Dependence' seems an adequate term. But can fully independent creatures dispense with morality? I think not. |
| 5730 | Our bodies weren't created to be used; on the contrary, their creation makes a use possible [Lucretius] |
| Full Idea: Nothing in our bodies was born in order that we might be able to use it, but the thing born creates the use. | |
| From: Lucretius (On the Nature of the Universe [c.60 BCE], IV.834) | |
| A reaction: This remark (strongly opposed to Aristotle's view of human function and nature) raises the obvious question of why the body is so very useful for staying alive. Most of its uses are not random. Lucretius would abandon this view if he read Darwin. |
| 5726 | The dead are no different from those who were never born [Lucretius] |
| Full Idea: One who no longer is cannot suffer, or differ in any way from one who has never been born. | |
| From: Lucretius (On the Nature of the Universe [c.60 BCE], III.867) | |
| A reaction: There is a special kind of pain in being poor if you were once rich, which is not suffered by those who experience only poverty. Lucretius is right, but we are concerned with how we feel now, not with how we won't feel once dead. |
| 5705 | Nature only wants two things: freedom from pain, and pleasure [Lucretius] |
| Full Idea: Nature only clamours for two things, a body free from pain, a mind released from worry and fear for the enjoyment of pleasurable sensation. | |
| From: Lucretius (On the Nature of the Universe [c.60 BCE], II.21) | |
| A reaction: I can't help agreeing with those (like Aristotle) who consider this a very demeaning view of human life. See Idea 99. Bentham agrees with Lucretius (Idea 3777). I think they are largely right, but not entirely. Other motives are possible than sensations. |
| 4273 | Kant's Moral Law is the rules rational beings would accept when trying to live by agreement [Scruton] |
| Full Idea: We can see the Kantian 'Moral Law' as consisting precisely in those rules which rational beings would accept, when attempting to live by agreement. | |
| From: Roger Scruton (Animal Rights and Wrongs [1996], p.30) | |
| A reaction: If this combines Kantian notions of duty with the obligations of contracts, it is the core of a very powerful moral theory. See the work of Tim Scanlon. Classic problems are still the weak, animals and free riders. |
| 4274 | The modern virtues are courage, prudence, wisdom, temperance, justice, charity and loyalty [Scruton] |
| Full Idea: The antique virtues of courage, prudence, wisdom, temperance and justice, amplified by Christian charity and pagan loyalty, still form the core idea of human excellence. | |
| From: Roger Scruton (Animal Rights and Wrongs [1996], p.33) | |
| A reaction: I always think sense of humour has become a key modern virtue. Where did that come from? Maybe a sense of irony is a good thing. How about efficiency (which is Plato's idea of justice!)? |
| 4286 | Only just people will drop their own self-interests when faced with an impartial verdict [Scruton] |
| Full Idea: Only just people will act on the impartial verdict when their own interests conflict with it. | |
| From: Roger Scruton (Animal Rights and Wrongs [1996], p.61) | |
| A reaction: The Kantian account of the virtues. Virtues are seen in the acceptance of a range of obvious human duties. Very helpful point if one is aiming for one unified theory of morality. |
| 4283 | Sympathy can undermine the moral order just as much as crime does [Scruton] |
| Full Idea: A person who lives by sympathy may undermine the moral order as effectively as the one who lives by crime. | |
| From: Roger Scruton (Animal Rights and Wrongs [1996], p.54) | |
| A reaction: A slightly chilling remark. Presumably one should not feel too much for suffering which is deserved. What about unavoidable suffering? It is certainly important to see that some suffering is morally good (e.g. grief or remorse). |
| 4290 | That which can only be done by a callous person, ought not to be done [Scruton] |
| Full Idea: That which can only be done by a callous person, ought not to be done. | |
| From: Roger Scruton (Animal Rights and Wrongs [1996], p.86) | |
| A reaction: The problem cases all arise in wartime. Ideally we want to show sympathy even when being necessarily ruthless, but in practice we send the callous ones to do the horrible deed. |
| 4285 | As soon as we drop self-interest and judge impartially, we find ourselves agreeing about conflicts [Scruton] |
| Full Idea: As soon as we set our own interests aside and look on human relations with the eye of the impartial judge, we find ourselves agreeing over the rights and wrongs of any conflict. | |
| From: Roger Scruton (Animal Rights and Wrongs [1996], p.59) | |
| A reaction: A nice, and fairly plausible, defence of Kantian ethics. Maybe the UN should actually settle all disputes, instead of just peace-keeping. The idea merely describes the function of the law, and especially an independent judiciary. |
| 4287 | Utilitarianism merely guides us (by means of sympathy) when the moral law is silent [Scruton] |
| Full Idea: Utilitarian thinking does not replace or compete with the moral law, but guides us when the moral law is silent and only sympathy speaks. | |
| From: Roger Scruton (Animal Rights and Wrongs [1996], p.63) | |
| A reaction: If the moral law is silent, it is not quite clear why we should follow sympathy rather than contempt. There is the well-known danger here of the moral law turning out to lack content. |
| 4280 | Utilitarianism is wrong precisely because it can't distinguish animals from people [Scruton] |
| Full Idea: It was precisely the inability of utilitarianism to explain the distinction between animals and people which led to its rejection. | |
| From: Roger Scruton (Animal Rights and Wrongs [1996], p.50) | |
| A reaction: A nice turning of the tables, rejecting the utilitarian pride in incorporating animals into their theory where others (like Kant) reject them. Yet in one respect (suffering) they are inescapably very like us. |
| 4281 | Utilitarianism says we can't blame Stalin yet, but such a theory is a sick joke [Scruton] |
| Full Idea: Stalin and Hitler justified their actions in utilitarian terms, ..and no one can accuse them, for who knows what the long-term effects of their actions might be? But a morality which can't pass final judgement on Hitler or Stalin is a kind of sick joke. | |
| From: Roger Scruton (Animal Rights and Wrongs [1996], p.52) | |
| A reaction: A powerful argument against simplistic consequentialism. We can judge an action at any time, even beforehand, and that must be part of morality, which can't just observe the unfolding consequences. |
| 4282 | Morality is not a sort of calculation, it is what sets the limits to when calculation is appropriate [Scruton] |
| Full Idea: It is nearer the truth to see morality as setting the limits to practical reasoning, rather than being a species of it. Moral principles tell us precisely that we must go no further along the path of calculation. | |
| From: Roger Scruton (Animal Rights and Wrongs [1996], p.52) | |
| A reaction: Well said. If you are assessing whether an act of vicious brutality is required, you have probably already gone morally astray. It is not hard, though, to think of counterexamples, especially in wartime. |
| 4296 | Brutal animal sports are banned because they harm the personality of the watcher [Scruton] |
| Full Idea: Dog-fights and bear-baiting are naturally forbidden by law, because they threaten the personality of those who attend them. | |
| From: Roger Scruton (Animal Rights and Wrongs [1996], p.107) | |
| A reaction: Hm. If this is so, it is mainly because it takes place in a closed pen, where we can get a close look at the brutality and blood. It could be said to be more honest than hunting with gun or hounds. 'Go on eyes, look your worst'. |
| 4263 | Many of the stranger forms of life (e.g. worms) interest us only as a species, not as individuals [Scruton] |
| Full Idea: Most of the stranger forms of life (worms, fleas, locusts etc.) are not really suitors for our moral concern, and interest us primarily as species, and only rarely as individuals. | |
| From: Roger Scruton (Animal Rights and Wrongs [1996], p.13) | |
| A reaction: Interesting, but that seems to reflect on us, rather than cutting nature at the joints. As soon as you look closely, you recognise an individual rather than a member of a species. |
| 4268 | Animals command our sympathy and moral concern initially because of their intentionality [Scruton] |
| Full Idea: It seems to me that the concept of intentionality introduces the first genuine claim of animals upon our sympathies and our moral concern. | |
| From: Roger Scruton (Animal Rights and Wrongs [1996], p.16) | |
| A reaction: Good. If one's approach to morality is Humean (via sympathy) this seems right. Utilitarianism bases animal rights on qualia (pleasures and pains). |
| 4276 | An animal has individuality if it is nameable, and advanced animals can respond to their name [Scruton] |
| Full Idea: An animal has acquired individuality if the gift of a proper name seems appropriate, the high point being reached with animals such as dogs which actually respond to their own name. | |
| From: Roger Scruton (Animal Rights and Wrongs [1996], p.39) | |
| A reaction: Interesting, even though it is rather chauvinistic. I might name the fleas in my circus, but regard a whole section of the human race as indistinguishable and not worth naming. |
| 4288 | Many breeds of animals have needs which our own ancestors planted in them [Scruton] |
| Full Idea: Many breeds of animals have needs which our own ancestors planted in them. | |
| From: Roger Scruton (Animal Rights and Wrongs [1996], p.75) | |
| A reaction: He is talking about race horses and St Bernards. This doesn't avoid the moral dilemma, because we could race horses die out if we thought we had created a bad life for them. |
| 4295 | We favour our own animals over foreign ones because we see them as fellow citizens [Scruton] |
| Full Idea: We don't give help to British animals (through the RSPCA) rather than foreign animals because of their nearness or needs, but because of our sense of them as fellow citizens. | |
| From: Roger Scruton (Animal Rights and Wrongs [1996], p.104) | |
| A reaction: A bit strong. It may, in fact, be because we look after them the way we look after the rest of our property. Even Kantians can be sentimental sometimes. |
| 4277 | I may avoid stepping on a spider or flower, but fellow-feeling makes me protect a rabbit [Scruton] |
| Full Idea: I instinctively recoil from stepping on a spider or a forget-me-knot in my path, but neither of these responses expresses the fellow-feeling that forbids me to step on a rabbit or a mouse. | |
| From: Roger Scruton (Animal Rights and Wrongs [1996], p.41) | |
| A reaction: It is fellow-feeling that makes us prefer mammals to reptiles. It seems wrong to build a moral system purely on empathy, because psychopaths don't even empathise with nice human beings. Externalism in morality. |
| 4278 | Lucky animals are eaten by large predators, the less lucky starve, and worst is death by small predators [Scruton] |
| Full Idea: Lucky animals die in the jaws of a large predator; predators themselves are less lucky, when they die of lingering starvation; least fortunate are those killed by smaller creatures, such as maggots and bacteria. | |
| From: Roger Scruton (Animal Rights and Wrongs [1996], p.43) | |
| A reaction: A nice insight, even if it does slide into claiming that we are simply large predators, and that therefore fox-hunting is a virtue… |
| 4279 | We can easily remove the risk of suffering from an animal's life, but we shouldn't do it [Scruton] |
| Full Idea: It is easy to remove the risk of suffering from an animal's life, but the result is not a life which an animal should lead. | |
| From: Roger Scruton (Animal Rights and Wrongs [1996], p.44) | |
| A reaction: I'm not clear where the "should" derives from here. You can't save them all, and large interventions would destroy the ecosystem. But should we never, say, put a victim out of its misery? |
| 4289 | Sheep and cattle live comfortable lives, and die an enviably easy death [Scruton] |
| Full Idea: Sheep and beef cattle live a quiet and comfortable life among their companions, and are despatched in ways which human beings, if they are rational, must surely envy. | |
| From: Roger Scruton (Animal Rights and Wrongs [1996], p.81) | |
| A reaction: No rational person could envy a premature death, and we don't wait for cattle to be old before eating them. A quick death is little consolation for being murdered, and many people would prefer a slower death (without agony, of course). |
| 4291 | Letting your dog kill wild rats, and keeping rats for your dog to kill, are very different [Scruton] |
| Full Idea: There is a difference between the person who allows his terrier to kill wild rats, and the person who keeps tame rats for his terrier to kill. | |
| From: Roger Scruton (Animal Rights and Wrongs [1996], p.87) | |
| A reaction: There are areas in the middle, where I encourage pheasants to breed 'wild' on my land. The purchase of a Rottweiller also tests the moral boundaries here. |
| 4292 | Concern for one animal may harm the species, if the individual is part of a bigger problem [Scruton] |
| Full Idea: Too much concern for individual animals may in fact harm the species, by promoting diseased or degenerate members, or preventing population control. | |
| From: Roger Scruton (Animal Rights and Wrongs [1996], p.87) | |
| A reaction: Okay till we reach human beings, where this principle won't go away, even if further principles about personhood, rationality and deep sympathy enter the picture. We can't be utilitarian about animals, and something else about humans. |
| 4293 | Introducing a natural means of controlling animal population may not be very compassionate [Scruton] |
| Full Idea: It is hard to believe that those who would introduce wolves as a means of controlling the deer population have much sympathy for deer. | |
| From: Roger Scruton (Animal Rights and Wrongs [1996], p.91) | |
| A reaction: Good point. If we assume that culling is required at all, then the decisive human actions which shock us on television may be nicer than the natural deaths that occur during the night. |
| 4294 | Animals are outside the community of rights, but we still have duties towards them [Scruton] |
| Full Idea: Animals exist outside the web of reciprocal rights and obligations, created by dialogue, but because they have no rights it does not mean that we have no duties towards them. | |
| From: Roger Scruton (Animal Rights and Wrongs [1996], p.97) | |
| A reaction: The modern Kantian view of animals, though Kant struggled to show why we might have any duties to animals. Is mere compassion enough to produce a duty, or is it a luxurious indulgence of our nature? |
| 5716 | Nature runs the universe by herself without the aid of gods [Lucretius] |
| Full Idea: Nature is free and uncontrolled by proud masters and runs the universe by herself without the aid of gods. | |
| From: Lucretius (On the Nature of the Universe [c.60 BCE], II.1094) | |
| A reaction: A nice remark. This apparent personification of nature implies the application of laws to an essentially passive reality. See Idea 5442 and Nature|Laws of Nature|Essentialism for a different view. |
| 5704 | There can be no centre in infinity [Lucretius] |
| Full Idea: There can be no centre in infinity. | |
| From: Lucretius (On the Nature of the Universe [c.60 BCE], I.1069) | |
| A reaction: This is highly significant, because if we can establish that the universe is infinite (as Epicurus believes), it follows that the human race cannot be at the centre of it, as the Ptolemaic/medieval view proposed. |
| 5703 | The universe must be limitless, since there could be nothing outside to limit it [Lucretius] |
| Full Idea: The universe is not bounded in any direction. If it were, it would necessarily have a limit somewhere, but a thing cannot have a limit unless there is something outside to limit it. | |
| From: Lucretius (On the Nature of the Universe [c.60 BCE], I.959) | |
| A reaction: This is a subtler argument than the mere enquiry about why you would have to stop at the end of the universe. It still seems a nice argument, though Einstein's curvature of space seems to have thwarted it. |
| 5693 | Everything is created and fed by nature from atoms, and they return to atoms in death [Lucretius] |
| Full Idea: The ultimate realities of heaven and the gods are the atoms, from which nature creates all things and increases and feeds them, and into which, when they perish, nature again resolves them. | |
| From: Lucretius (On the Nature of the Universe [c.60 BCE], I.46) | |
| A reaction: Sounds right to me. Nothing in modern particle theory and string theory has refuted this claim. But what makes the atoms move, and what makes them combine in an orderly way? Is the orderliness of atoms made of atoms? Essences? |
| 5701 | If an object is infinitely subdivisible, it will be the same as the whole universe [Lucretius] |
| Full Idea: If there are no atoms, the smallest bodies will have infinite parts, since they can be endlessly halved. ..But then there will be no difference between the smallest thing and the whole universe, as they will equally have infinite parts. | |
| From: Lucretius (On the Nature of the Universe [c.60 BCE], I.620) | |
| A reaction: Another argument which remains effective even now. There must surely (intuitively) be more divisions possible in a large object than in a small one? Unless of course there were many different sizes of infinity…. See Cantor. |
| 5708 | In downward motion, atoms occasionally swerve slightly for no reason [Lucretius] |
| Full Idea: When atoms are travelling straight down through empty space by their own weight, at quite indeterminate times and places they swerve ever so little from their course. | |
| From: Lucretius (On the Nature of the Universe [c.60 BCE], II.217) | |
| A reaction: Never a popular theory because it seems to breach the Principle of Sufficient Reason (Ideas 306 + 3646). This seems to be the beginning of a strong need for the concept of free will, and an underlying explanation. Most thinkers put mind outside nature. |
| 17004 | Nothing can break the binding laws of eternity [Lucretius] |
| Full Idea: Nothing has power to break the binding laws of eternity. | |
| From: Lucretius (On the Nature of the Universe [c.60 BCE], 5.56) | |
| A reaction: This seems to be virtually the only remark from the ancient world suggesting that there are 'laws' of nature, so I'm guessing it is a transient metaphor, not a theory about nature. 'Even the gods must bow to necessity'. |
| 5706 | Atoms move themselves [Lucretius] |
| Full Idea: Atoms move themselves. | |
| From: Lucretius (On the Nature of the Universe [c.60 BCE], II.133) | |
| A reaction: Something has to move itself, I suppose, but then that could be psuché, giving us free will (see Idea 1424). Why does Epicurus need the 'swerve' if atoms are self-movers? See Idea 5708. |
| 5696 | If there were no space there could be no movement, or even creation [Lucretius] |
| Full Idea: We see movement everywhere, but if there were no empty space, things would be denied the power of movement - or rather, they could not possibly have come into existence, embedded as they would have been in motionless matter. | |
| From: Lucretius (On the Nature of the Universe [c.60 BCE], I.342) | |
| A reaction: This still seems a good argument, if reality is made of particles. People can move in a crowd until it becomes too dense. |
| 5700 | It is quicker to break things up than to assemble them [Lucretius] |
| Full Idea: Anything can be more speedily disintegrated than put together again. | |
| From: Lucretius (On the Nature of the Universe [c.60 BCE], I.558) | |
| A reaction: Clearly the concept of entropy was around long before anyone tried to give a systematic or mathematical account of it. |
| 5698 | We can only sense time by means of movement, or its absence [Lucretius] |
| Full Idea: It must not be claimed that anyone can sense time by itself apart from the movement of things or their restful immobility. | |
| From: Lucretius (On the Nature of the Universe [c.60 BCE], I.465) | |
| A reaction: This seems a remarkably Einsteinian remark, though he is only talking of the epistemology of the matter, not the ontology. We are not far from the concept of space-time here. |
| 5715 | This earth is very unlikely to be the only one created [Lucretius] |
| Full Idea: It is in the highest degree unlikely that this earth and sky is the only one to have been created. | |
| From: Lucretius (On the Nature of the Universe [c.60 BCE], II.1057) | |
| A reaction: I can only admire the science fiction imagination of this, which roughly agrees with the assessment of modern cosmologists. We think imagination was cramped in the ancient world, and now wanders free - but that is not so. |
| 5694 | Nothing can be created by divine power out of nothing [Lucretius] |
| Full Idea: In studying the workings of nature, our starting-point will be this principle: nothing can ever be created by divine power out of nothing. | |
| From: Lucretius (On the Nature of the Universe [c.60 BCE], I.152) | |
| A reaction: This claim seems to cry out for a bit of empiricist caution. What observation has convinced Lucretius that creation out of nothing is impossible? The early Christians switched to the view that divine creation is 'ex nihilo' - out of nothing. |
| 5699 | If matter wasn't everlasting, everything would have disappeared by now [Lucretius] |
| Full Idea: If the matter in things had not been everlasting, everything by now would have gone back to nothing, and the things we see would be the product of rebirth out of nothing. | |
| From: Lucretius (On the Nature of the Universe [c.60 BCE], I.544) | |
| A reaction: See Idea 1431, which is Aquinas's Third Way of proving God. Aquinas thinks there must be a necessary being outside of the system, but Lucretius thinks there must be some necessary existence within the system (as Hume had suggested). |
| 5707 | The universe can't have been created by gods, because it is too imperfect [Lucretius] |
| Full Idea: The universe was certainly not created for us by divine power: it is so full of imperfections. | |
| From: Lucretius (On the Nature of the Universe [c.60 BCE], II.180) | |
| A reaction: This is certainly a problem if God is 'supremely perfect', as Descartes proposed, because then the universe would also have to be supremely perfect. See Idea 2114 for a possible answer from Leibniz. Hume agrees with Epicurus about design. |
| 5710 | Gods are tranquil and aloof, and have no need of or interest in us [Lucretius] |
| Full Idea: The nature of deity is to enjoy immortal existence in utter tranquillity, aloof and detached from our affairs. It is free from all pain and peril, strong in its own resources, exempt from any need of us, indifferent to our merits and immune from anger. | |
| From: Lucretius (On the Nature of the Universe [c.60 BCE], II.652) | |
| A reaction: This seems to be the seed of late seventeenth century deism - the idea of a Creator who is now absent, and ignores our prayers. At that time 'Epicurean' became a synonym for atheist, but Epicureans never quite reached that point. |
| 5731 | Why does Jupiter never hurl lightning from a blue sky? [Lucretius] |
| Full Idea: Why does Jupiter never hurl his thunderbolt upon the earth and let loose his thunder out of a sky that is wholly blue? | |
| From: Lucretius (On the Nature of the Universe [c.60 BCE], VI.400) | |
| A reaction: Nice question! It really doesn't take very much to see through superstition, and the fact that most people believed such things shows how staggeringly uncritical they were in their thinking, until philosophers appeared and taught them how to reason. |
| 5720 | Spirit is mortal [Lucretius] |
| Full Idea: Spirit is mortal. | |
| From: Lucretius (On the Nature of the Universe [c.60 BCE], III.542) | |
| A reaction: This is asserted at an historical moment when immortality is beginning to grip everyone's imagination. |
| 5722 | For a separated spirit to remain sentient it would need sense organs attached to it [Lucretius] |
| Full Idea: If spirit is immortal and can remain sentient when divorced from our body, we must credit it with possession of five senses; but eyes or nostrils or hand or tongue or ears cannot be attached to a disembodied spirit. | |
| From: Lucretius (On the Nature of the Universe [c.60 BCE], III.624) | |
| A reaction: This is a powerful argument against immortality. If you are going to see, you must interact with photons; to hear you must respond to compression waves; to smell you must react to certain molecules. Immortality without those would be a bit dull. |
| 5725 | An immortal mind couldn't work harmoniously with a mortal body [Lucretius] |
| Full Idea: It is crazy to couple a mortal object with an eternal and suppose that they can work in harmony and mutually interact. | |
| From: Lucretius (On the Nature of the Universe [c.60 BCE], III.799) | |
| A reaction: An interesting thought, though not a terrible persuasive argument. A god would indeed be a bit restless if it were chained to a human being, but it would presumably knuckle down to the task if firmly instructed to do it by Zeus. |
| 5721 | The mind is very small smooth particles, which evaporate at death [Lucretius] |
| Full Idea: Since the substance of the mind is extraordinarily mobile, it must consist of particles exceptionally small and smooth and round, ..so that, when the spirit has escaped from the body, the outside of the limbs appears intact and there is no loss of weight. | |
| From: Lucretius (On the Nature of the Universe [c.60 BCE], III.201) | |
| A reaction: Lucretius is wonderfully attentive to interesting evidence. He goes on to compare it to the evaporation of perfume. The fine-grained connections of the brain are not far off what he is proposing. |
| 5723 | If spirit is immortal and enters us at birth, why don't we remember a previous existence? [Lucretius] |
| Full Idea: If the spirit is by nature immortal and is slipped into the body at birth, why do we retain no memory of an earlier existence, no impress of antecedent events? | |
| From: Lucretius (On the Nature of the Universe [c.60 BCE], III.670) | |
| A reaction: Plato took the view that we do recall previous existence, as seen in our innate ideas. This problem forced the Christian church into the uncomfortable claim that God creates the soul at conception, but that it then goes on to immortality. |