58 ideas
14888 | Wisdom prevents us from being ruled by the moment [Nietzsche] |
Full Idea: The most important thing about wisdom is that it prevents human beings from being ruled by the moment. | |
From: Friedrich Nietzsche (Unpublished Notebooks 1872-74 [1873], 30 [25]) |
14863 | Unlike science, true wisdom involves good taste [Nietzsche] |
Full Idea: Inherent in wisdom [sophia] is discrimination, the possession of good taste: whereas science, lacking such a refined sense of taste, gobbles up anything that is worth knowing. | |
From: Friedrich Nietzsche (Unpublished Notebooks 1872-74 [1873], 19 [086]) | |
A reaction: This is blatantly unfair to science, which may lack 'taste', but at least prefers deep theories with wide-ranging explanatory power to narrow local theories. Maybe the line across the philosophical community is the one picking out those with taste? |
14890 | Suffering is the meaning of existence [Nietzsche] |
Full Idea: Suffering is the meaning of existence. | |
From: Friedrich Nietzsche (Unpublished Notebooks 1872-74 [1873], 32 [67]) | |
A reaction: This doesn't mean that he is advocating suffering. The context of his remark is that the pursuit of truth involves suffering. |
1798 | He studied philosophy by suspending his judgement on everything [Pyrrho, by Diog. Laertius] |
Full Idea: He studied philosophy on the principle of suspending his judgement on all points. | |
From: report of Pyrrho (reports [c.325 BCE]) by Diogenes Laertius - Lives of Eminent Philosophers 09.Py.3 | |
A reaction: In what sense was Pyrrho a philosopher, then? He must have asserted SOME generalised judgments. |
14861 | Philosophy ennobles the world, by producing an artistic conception of our knowledge [Nietzsche] |
Full Idea: Philosophy is indispensable for education because it draws knowledge into an artistic conception of the world, and thereby ennobles it. | |
From: Friedrich Nietzsche (Unpublished Notebooks 1872-74 [1873], 19 [052]) | |
A reaction: I take this to be an unusual way of saying that philosophy aims at the unification of knowledge, which is roughly my own view. It has hard for us to keep believing that life could be 'ennobled'. |
14885 | The first aim of a philosopher is a life, not some works [Nietzsche] |
Full Idea: The philosopher's product is his life (first, before his works). It is his work of art. | |
From: Friedrich Nietzsche (Unpublished Notebooks 1872-74 [1873], 29 [205]) |
14887 | You should only develop a philosophy if you are willing to live by it [Nietzsche] |
Full Idea: One should have a philosophy only to the extent that one is capable of living according to this philosophy: so that everything does not become mere words. | |
From: Friedrich Nietzsche (Unpublished Notebooks 1872-74 [1873], 30 [17]) |
14889 | Philosophy is pointless if it does not advocate, and live, a new way of life [Nietzsche] |
Full Idea: As long as philosophers do not muster the courage to advocate a lifestyle structured in an entirely different way and demonstrate it by their own example, they will come to nothing. | |
From: Friedrich Nietzsche (Unpublished Notebooks 1872-74 [1873], 31 [10]) | |
A reaction: This is a pretty tough requirement for the leading logicians and metaphysicians of our day, but they must face their marginality. The public will only be interested in philosophers who advocate new ways of living. |
14862 | Philosophy is more valuable than much of science, because of its beauty [Nietzsche] |
Full Idea: The reason why unprovable philosophizing still has some value - more value, in fact, than many a scientific proposition - lies in the aesthetic value of such philosophizing, that is, in its beauty and sublimity. | |
From: Friedrich Nietzsche (Unpublished Notebooks 1872-74 [1873], 19 [076]) | |
A reaction: I am increasingly inclined to agree. I love wide-ranging and ambitious works of metaphysics, each of which is a unique creation of the human intellect (and with which no other individual will ever entirely agree). A great short paper is also beautiful. |
14878 | It would better if there was no thought [Nietzsche] |
Full Idea: It would be better if thought did not exist at all. | |
From: Friedrich Nietzsche (Unpublished Notebooks 1872-74 [1873], 29 [004]) |
14881 | Why do people want philosophers? [Nietzsche] |
Full Idea: Why do human beings even want philosophers? | |
From: Friedrich Nietzsche (Unpublished Notebooks 1872-74 [1873], 29 [019]) | |
A reaction: It is not clear, of course, that they do want philosophers. The standard attitude to them seems to be a mixture of contempt and fear. |
14876 | Philosophy is always secondary, because it cannot support a popular culture [Nietzsche] |
Full Idea: It is not possible to base a popular culture on philosophy. Thus, with regard to culture, philosophy never can have primary, but always only secondary, significance. | |
From: Friedrich Nietzsche (Unpublished Notebooks 1872-74 [1873], 23 [14]) | |
A reaction: It is the brilliance of Christianity as a set of ideas that it is simple enough to found a popular culture. A complex theology would make that impossible. Luther brought it back to its roots, when the priesthood lost touch with the people. |
14860 | Kant has undermined our belief in metaphysics [Nietzsche] |
Full Idea: In a certain sense, Kant's influence was detrimental; for the belief in metaphysics has been lost. | |
From: Friedrich Nietzsche (Unpublished Notebooks 1872-74 [1873], 19 [028]) | |
A reaction: As I understand it, there are two interpretations of Kant, one of which is fairly thoroughly anti-metaphysical, and another which is less so. Also one path leads to idealism and the other doesn't, but I need to research that. |
14859 | If philosophy controls science, then it has to determine its scope, and its value [Nietzsche] |
Full Idea: The philosophy that is in control of science must also consider the extent to which science should be allowed to develop; it must determine its value! | |
From: Friedrich Nietzsche (Unpublished Notebooks 1872-74 [1873], 19 [024]) |
1800 | Sceptics say reason is only an instrument, because reason can only be attacked with reason [Pyrrho, by Diog. Laertius] |
Full Idea: The Sceptics say that they only employ reason as an instrument, because it is impossible to overturn the authority of reason, without employing reason. | |
From: report of Pyrrho (reports [c.325 BCE]) by Diogenes Laertius - Lives of Eminent Philosophers 09.Py.8 |
12204 | The logic of metaphysical necessity is S5 [Rumfitt] |
Full Idea: It is a widely accepted thesis that the logic of metaphysical necessity is S5. | |
From: Ian Rumfitt (Logical Necessity [2010], §5) | |
A reaction: Rumfitt goes on to defend this standard view (against Dummett's defence of S4). The point, I take it, is that one can only assert that something is 'true in all possible worlds' only when the worlds are all accessible to one another. |
14880 | Logic is just slavery to language [Nietzsche] |
Full Idea: Logic is merely slavery in the fetters of language. | |
From: Friedrich Nietzsche (Unpublished Notebooks 1872-74 [1873], 29 [008]) | |
A reaction: I don't think I agree with this, but I still like it. |
12195 | Soundness in argument varies with context, and may be achieved very informally indeed [Rumfitt] |
Full Idea: Our ordinary standards for deeming arguments to be sound vary greatly from context to context. Even the package tourist's syllogism ('It's Tuesday, so this is Belgium') may meet the operative standards for soundness. | |
From: Ian Rumfitt (Logical Necessity [2010], Intro) | |
A reaction: No doubt one could spell out the preconceptions of package tourist reasoning, and arrive at the logical form of the implication which is being offered. |
12199 | There is a modal element in consequence, in assessing reasoning from suppositions [Rumfitt] |
Full Idea: There is a modal element in consequence, in its applicability to assessing reasoning from suppositions. | |
From: Ian Rumfitt (Logical Necessity [2010], §2) |
12201 | We reject deductions by bad consequence, so logical consequence can't be deduction [Rumfitt] |
Full Idea: A rule is to be rejected if it enables us to deduce from some premisses a purported conclusion that does not follow from them in the broad sense. The idea that deductions answer to consequence is incomprehensible if consequence consists in deducibility. | |
From: Ian Rumfitt (Logical Necessity [2010], §2) |
12194 | Contradictions include 'This is red and not coloured', as well as the formal 'B and not-B' [Rumfitt] |
Full Idea: Overt contradictions include formal contradictions of form 'B and not B', but I also take them to include 'This is red all over and green all over' and 'This is red and not coloured'. | |
From: Ian Rumfitt (Logical Necessity [2010], Intro) |
12198 | Geometrical axioms in logic are nowadays replaced by inference rules (which imply the logical truths) [Rumfitt] |
Full Idea: The geometrical style of formalization of logic is now little more than a quaint anachronism, largely because it fails to show logical truths for what they are: simply by-products of rules of inference that are applicable to suppositions. | |
From: Ian Rumfitt (Logical Necessity [2010], §1) | |
A reaction: This is the rejection of Russell-style axiom systems in favour of Gentzen-style natural deduction systems (starting from rules). Rumfitt quotes Dummett in support. |
14869 | If some sort of experience is at the root of matter, then human knowledge is close to its essence [Nietzsche] |
Full Idea: If pleasure, displeasure, sensation, memory, reflex movements are all part of the essence of matter, then human knowledge penetrates far more deeply into the essence of things. | |
From: Friedrich Nietzsche (Unpublished Notebooks 1872-74 [1873], 19 [161]) | |
A reaction: I don't think Nietzsche is thinking of monads at this point, but his idea certainly applies to them. Leibniz rested his whole theory on the close analogy between how minds work and how matter must also work. |
14532 | A distinctive type of necessity is found in logical consequence [Rumfitt, by Hale/Hoffmann,A] |
Full Idea: Rumfitt argues that there is a distinctive notion of necessity implicated in the notion of logical consequence. | |
From: report of Ian Rumfitt (Logical Necessity [2010]) by Bob Hale/ Aviv Hoffmann - Introduction to 'Modality' 2 |
12193 | Logical necessity is when 'necessarily A' implies 'not-A is contradictory' [Rumfitt] |
Full Idea: By the notion of 'logical necessity' I mean that there is a sense of 'necessary' for which 'It is necessary that A' implies and is implied by 'It is logically contradictory that not A'. ...From this, logical necessity is implicated in logical consequence. | |
From: Ian Rumfitt (Logical Necessity [2010], Intro) | |
A reaction: Rumfitt expresses a commitment to classical logic at this point. We will need to be quite sure what we mean by 'contradiction', which will need a clear notion of 'truth'.... |
12200 | A logically necessary statement need not be a priori, as it could be unknowable [Rumfitt] |
Full Idea: There is no reason to suppose that any statement that is logically necessary (in the present sense) is knowable a priori. ..If a statement is logically necessary, its negation will yield a contradiction, but that does not imply that someone could know it. | |
From: Ian Rumfitt (Logical Necessity [2010], §2) | |
A reaction: This remark is aimed at Dorothy Edgington, who holds the opposite view. Rumfitt largely defends McFetridge's view (q.v.). |
12202 | Narrow non-modal logical necessity may be metaphysical, but real logical necessity is not [Rumfitt] |
Full Idea: While Fine suggests defining a narrow notion of logical necessity in terms of metaphysical necessity by 'restriction' (to logical truths that can be defined in non-modal terms), this seems unpromising for broad logical necessity, which is modal. | |
From: Ian Rumfitt (Logical Necessity [2010], §2) | |
A reaction: [compressed] He cites Kit Fine 2002. Rumfitt glosses the non-modal definitions as purely formal. The metaphysics lurks somewhere in the proof. |
12203 | If a world is a fully determinate way things could have been, can anyone consider such a thing? [Rumfitt] |
Full Idea: A world is usually taken to be a fully determinate way that things could have been; but then one might seriously wonder whether anyone is capable of 'considering' such a thing at all. | |
From: Ian Rumfitt (Logical Necessity [2010], §4) | |
A reaction: This has always worried me. If I say 'maybe my coat is in the car', I would hate to think that I had to be contemplating some entire possible world (including all the implications of my coat not being on the hat stand). |
14875 | Belief matters more than knowledge, and only begins when knowledge ceases [Nietzsche] |
Full Idea: The human being starts to believe when he ceases to know. …Knowledge is not as important for the welfare of human beings as is belief. | |
From: Friedrich Nietzsche (Unpublished Notebooks 1872-74 [1873], 21 [13]) | |
A reaction: The first idea is now associated with Williamson (and Hossack). The second is something like the pragmatic view of belief espoused by Ramsey. |
14866 | It always remains possible that the world just is the way it appears [Nietzsche] |
Full Idea: Against Kant we can still object, even if we accept all his propositions, that it is still possible that the world is as it appears to us. | |
From: Friedrich Nietzsche (Unpublished Notebooks 1872-74 [1873], 19 [125]) | |
A reaction: This little thought at least seems to be enough to block the slide from phenomenalism into total idealism. The idea that direct realism can never be ruled out, even if it is false, is very striking. |
6595 | If we need a criterion of truth, we need to know whether it is the correct criterion [Pyrrho, by Fogelin] |
Full Idea: Against the Stoics, the Pyrrhonians argued that if someone presents a criterion of truth, then it will be important to determine whether it is the correct criterion. | |
From: report of Pyrrho (reports [c.325 BCE]) by Robert Fogelin - Walking the Tightrope of Reason Ch.4 | |
A reaction: Hence Davidson says that attempts to define truth are 'folly'. If something has to be taken as basic, then truth seems a good candidate (since, for example, logical operators could not otherwise be defined by means of 'truth' tables). |
6593 | The Pyrrhonians attacked the dogmas of professors, not ordinary people [Pyrrho, by Fogelin] |
Full Idea: The attacks of the Pyrrhonian sceptics are directed against the dogmas of the 'professors', not against the beliefs of the common people pursuing the business of daily life. | |
From: report of Pyrrho (reports [c.325 BCE]) by Robert Fogelin - Walking the Tightrope of Reason Ch.4 | |
A reaction: This may be because they thought that ordinary people were too confused to be worth attacking, rather than because they lived in a state of beautifully appropriate beliefs. Naïve realism is certainly worth attacking. |
14872 | Our knowledge is illogical, because it rests on false identities between things [Nietzsche] |
Full Idea: Every piece of knowledge that is beneficial to us involves an identification of nonidentical things, of things that are similar, which means that it is essentially illogical. | |
From: Friedrich Nietzsche (Unpublished Notebooks 1872-74 [1873], 19 [236]) | |
A reaction: I take the thought to be that no two tigers are alike, but we call them all 'tigers' and merge them into a type, and then all our knowledge is based on this distortion. A wonderful idea. I love particulars You should love particulars. |
14879 | The most extreme scepticism is when you even give up logic [Nietzsche] |
Full Idea: Even skepticism contains a belief: the belief in logic. The most extreme position is hence the abandoning of logic. | |
From: Friedrich Nietzsche (Unpublished Notebooks 1872-74 [1873], 29 [008]) | |
A reaction: Some might say that flirting with non-classical logic (as in Graham Priest) is precisely travelling down this road. You could also be sceptical about meaning in language, so you couldn't articulate your abandonment of logic. |
6592 | Academics said that Pyrrhonians were guilty of 'negative dogmatism' [Pyrrho, by Fogelin] |
Full Idea: The ancient Academic sceptics charged the Pyrrhonian sceptics with 'negative dogmatism' when they claimed that a certain kind of knowledge is impossible. | |
From: report of Pyrrho (reports [c.325 BCE]) by Robert Fogelin - Walking the Tightrope of Reason Ch.4 | |
A reaction: It is this kind of point which should push us towards some sort of rationalism, because certain a priori 'dogmas' seem to be indispensable to get any sort of discussion off the ground. The only safe person is Cratylus (see Idea 578). |
1805 | Judgements vary according to local culture and law (Mode 5) [Pyrrho, by Diog. Laertius] |
Full Idea: Fifth mode: judgements vary according to local custom, law and culture (Persians marry their daughters). | |
From: report of Pyrrho (reports [c.325 BCE]) by Diogenes Laertius - Lives of Eminent Philosophers 09.Py.9 |
1803 | Objects vary according to which sense perceives them (Mode 3) [Pyrrho, by Diog. Laertius] |
Full Idea: Third mode: things like an apple vary according to which sense perceives them (yellow, sweet, and fragrant). | |
From: report of Pyrrho (reports [c.325 BCE]) by Diogenes Laertius - Lives of Eminent Philosophers 09.Py.9 |
1807 | Perception varies with viewing distance and angle (Mode 7) [Pyrrho, by Diog. Laertius] |
Full Idea: Seventh mode: perception varies according to viewing distance and angle (the sun, and a dove's neck). | |
From: report of Pyrrho (reports [c.325 BCE]) by Diogenes Laertius - Lives of Eminent Philosophers 09.Py.9 |
1810 | Perception and judgement depend on comparison (Mode 10) [Pyrrho, by Diog. Laertius] |
Full Idea: Tenth mode: perceptions and judgements depend on comparison (light/heavy, above/below). | |
From: report of Pyrrho (reports [c.325 BCE]) by Diogenes Laertius - Lives of Eminent Philosophers 09.Py.9 |
1802 | Individuals vary in responses and feelings (Mode 2) [Pyrrho, by Diog. Laertius] |
Full Idea: Second mode: individual men vary in responses and feelings (heat and cold, for example). | |
From: report of Pyrrho (reports [c.325 BCE]) by Diogenes Laertius - Lives of Eminent Philosophers 09.Py.9 |
1801 | Animals vary in their feelings and judgements (Mode 1) [Pyrrho, by Diog. Laertius] |
Full Idea: First mode: animals vary in their feelings and judgements (of food, for example). | |
From: report of Pyrrho (reports [c.325 BCE]) by Diogenes Laertius - Lives of Eminent Philosophers 09.Py.9 |
1804 | Perception varies with madness or disease (Mode 4) [Pyrrho, by Diog. Laertius] |
Full Idea: Fourth mode: perceivers vary in their mental and physical state (such as the mad and the sick). | |
From: report of Pyrrho (reports [c.325 BCE]) by Diogenes Laertius - Lives of Eminent Philosophers 09.Py.9 |
1808 | Perception of things depends on their size or quantity (Mode 8) [Pyrrho, by Diog. Laertius] |
Full Idea: Eighth mode: perceptions of things depend on their magnitude or quantity (food and wine). | |
From: report of Pyrrho (reports [c.325 BCE]) by Diogenes Laertius - Lives of Eminent Philosophers 09.Py.9 |
1806 | Perception of objects depends on surrounding conditions (Mode 6) [Pyrrho, by Diog. Laertius] |
Full Idea: Sixth mode: the perception of an object depends on surrounding conditions (sunlight and lamplight). | |
From: report of Pyrrho (reports [c.325 BCE]) by Diogenes Laertius - Lives of Eminent Philosophers 09.Py.9 |
1809 | Perception is affected by expectations (Mode 9) [Pyrrho, by Diog. Laertius] |
Full Idea: Ninth mode: we perceive things according to what we expect (earthquakes and sunshine). | |
From: report of Pyrrho (reports [c.325 BCE]) by Diogenes Laertius - Lives of Eminent Philosophers 09.Py.9 |
14873 | If we find a hypothesis that explains many things, we conclude that it explains everything [Nietzsche] |
Full Idea: The feeling of certainty is the most difficult to develop. Initially one seeks explanation: if a hypothesis explains many things, we draw the conclusion that it explains everything. | |
From: Friedrich Nietzsche (Unpublished Notebooks 1872-74 [1873], 19 [238]) | |
A reaction: As so often, a wonderful warning from Nietzsche to other philosophers. They love to latch onto a Big Idea, and offer it as the answer to everything (especially, dare I say it, continental philosophers). |
14868 | Our primary faculty is perception of structure, as when looking in a mirror [Nietzsche] |
Full Idea: The primary faculty seems to me to be the perception of structure, that is, based upon the mirror. | |
From: Friedrich Nietzsche (Unpublished Notebooks 1872-74 [1873], 19 [153]) | |
A reaction: The point about the mirror makes this such an intriguingly original idea. Personally I like very much the idea that structure is our prime perception. See Sider 2011 on structure. |
14870 | We experience causation between willing and acting, and thereby explain conjunctions of changes [Nietzsche] |
Full Idea: The only form of causality of which we are aware is that between willing and acting - we transfer this to all things, and thereby explain the relationship between two changes that always occur together. | |
From: Friedrich Nietzsche (Unpublished Notebooks 1872-74 [1873], 19 [209]) | |
A reaction: This is a rather Humean view, of projecting our experience onto the world, but it may be that we really are experiencing real causation, just as it occurs between insentiate things. |
14867 | It is just madness to think that the mind is supernatural (or even divine!) [Nietzsche] |
Full Idea: To view 'spirit', the product of the brain, as supernatural. Even to deify it. What madness! | |
From: Friedrich Nietzsche (Unpublished Notebooks 1872-74 [1873], 19 [127]) | |
A reaction: When I started philolosophy I was obliged to take mind-body dualism very seriously, but I have finally managed to drag myself to the shores of this lake of madness, where Nietzsche awaited with a helping hand. |
14884 | The shortest path to happiness is forgetfulness, the path of animals (but of little value) [Nietzsche] |
Full Idea: If happiness were the goal, then animals would be the highest creatures. Their cynicism is grounded in forgetfulness: that is the shortest path to happiness, even if it is a happiness with little value. | |
From: Friedrich Nietzsche (Unpublished Notebooks 1872-74 [1873], 29 [143]) | |
A reaction: I would be reluctant to describe an apparently contented cow as 'happy'. Is a comatose person happy? Maybe happiness is fulfilling one's nature, like a monkey swinging through trees? |
14886 | Education is contrary to human nature [Nietzsche] |
Full Idea: Education runs contrary to the nature of a human being. | |
From: Friedrich Nietzsche (Unpublished Notebooks 1872-74 [1873], 30 [06]) | |
A reaction: Tell me about it! |
14883 | We should evaluate the past morally [Nietzsche] |
Full Idea: For the past I desire above all a moral evaluation. | |
From: Friedrich Nietzsche (Unpublished Notebooks 1872-74 [1873], 29 [096]) | |
A reaction: There is a bit of a contradiction with Idea 14819, of only a few years later. He was always interested in a historical approach to morality, but I'm not sure if his ethics gives a decent basis for moral assessments of remote historical eras. |
14882 | Protest against vivisection - living things should not become objects of scientific investigation [Nietzsche] |
Full Idea: Protest against vivisection of living things, that is, those things that are not yet dead should be allowed to live and not immediately be treated as an object for scientific investigation. | |
From: Friedrich Nietzsche (Unpublished Notebooks 1872-74 [1873], 29 [027]) | |
A reaction: Wow. How many other people had come up with this idea in 1873? |
14865 | We do not know the nature of one single causality [Nietzsche] |
Full Idea: We do not know the nature of one single causality. | |
From: Friedrich Nietzsche (Unpublished Notebooks 1872-74 [1873], 19 [121]) |
3062 | There are no causes, because they are relative, and alike things can't cause one another [Pyrrho, by Diog. Laertius] |
Full Idea: The idea of cause is relative to that of which it is the cause, and so has no real existence. …Also cause must either be body causing body, or incorporeal causing incorporeal, and neither of these is possible. | |
From: report of Pyrrho (reports [c.325 BCE]) by Diogenes Laertius - Lives of Eminent Philosophers 09.11.11 |
14871 | Laws of nature are merely complex networks of relations [Nietzsche] |
Full Idea: All laws of nature are only relations between x, y and z. We define laws of nature as relations to an x, y, and z, each of which in turn, is known to us only in relation to other x's, y's and z's. | |
From: Friedrich Nietzsche (Unpublished Notebooks 1872-74 [1873], 19 [235]) | |
A reaction: This could be interpreted in Armstrong's terms, as only identifying the x's, y's and z's by their universals, and then seeing laws as how those universal relate. I suspect, though, that Nietzsche has a Humean regularity pattern in mind. |
3063 | Motion can't move where it is, and can't move where it isn't, so it can't exist [Pyrrho, by Diog. Laertius] |
Full Idea: Motion is not moved in the place in which it is is, and it is impossible that it should be moved in the place in which it is not, so there is no such thing as motion. | |
From: report of Pyrrho (reports [c.325 BCE]) by Diogenes Laertius - Lives of Eminent Philosophers 09.11.11 |
14864 | The Greeks lack a normative theology: each person has their own poetic view of things [Nietzsche] |
Full Idea: The Greeks lack a normative theology: everyone has the right to deal with it in a poetic manner and he can believe whatever he wants. | |
From: Friedrich Nietzsche (Unpublished Notebooks 1872-74 [1873], 19 [110]) | |
A reaction: There is quite a lot of record of harshness towards atheists, and the trial of Socrates seems to have been partly over theology. However, no proper theological texts have come down, or records of the teachings of the priests. |