13 ideas
15118 | A successful Aristotelian 'definition' is what sciences produces after an investigation [Koslicki] |
Full Idea: My current use of the Aristotelian term 'definition' is intended to correspond to what is typically accessible to a scientist only at the end of a successful investigation into the nature of a particular phenomenon. | |
From: Kathrin Koslicki (Essence, Necessity and Explanation [2012], 13.3.1) | |
A reaction: It is crucial to understand that Aristotle's definitions could be several hundred pages long. It has nothing to do with dictionary definitions. He proposes 'nominal' and 'real' definitions. |
15116 | Essences cause necessary features, and definitions describe those necessary features [Koslicki] |
Full Idea: Since essences cause the other necessary features of a thing, so definitions, as the linguistic correlates of essences, explain, together with other axioms, the propositions describing those necessary features. | |
From: Kathrin Koslicki (Essence, Necessity and Explanation [2012], 13.3.1) | |
A reaction: This is nice and clear. Definitions are NOT essences - they are the linguistic correlates of essences, and mirror those essences. The necessary features are not the only things needing explanation. That picture is too passive. |
13197 | The notion of substance is one of the keys to true philosophy [Leibniz] |
Full Idea: I consider the notion of substance to be one of the keys to the true philosophy. ....I imagine that philosophers will one day know the notion of substance a bit better than they do now. | |
From: Gottfried Leibniz (Letters to Thomas Burnett [1703], 1699.01.20/30) | |
A reaction: This is a controversial remark at this historical moment, when the apparent Aristotelian commitment to substances was becoming discredited. Personally I would eliminate substance, but not just because physicists don't refer to it. |
15110 | An essence and what merely follow from it are distinct [Koslicki] |
Full Idea: We can distinguish (as Aristotle and Fine do) between what belongs to the essence of an object, and what merely follows from the essence of an object. | |
From: Kathrin Koslicki (Essence, Necessity and Explanation [2012], 13.1) | |
A reaction: This can help to clarify the confusions that result from treating necessary properties as if they were essential. |
15113 | Individuals are perceived, but demonstration and definition require universals [Koslicki] |
Full Idea: Individual instances of a kind of phenomenon, in Aristotle's view, can only be perceived through sense-perception; but they are not the proper subject-matter of scientific demonstration and definition. | |
From: Kathrin Koslicki (Essence, Necessity and Explanation [2012], 13.3.1) | |
A reaction: A footnote (11) explains that this is because they involve syllogisms, which require universals. I take Aristotle, and anyone sensible, to rest on individual essences, but inevitably turn to generic essences when language becomes involved. |
15112 | If an object exists, then its essential properties are necessary [Koslicki] |
Full Idea: If an object has a certain property essentially, then it follows that the object has the property necessarily (if it exists). | |
From: Kathrin Koslicki (Essence, Necessity and Explanation [2012], 13.2) | |
A reaction: She is citing Fine, who says that the converse (necessity implying essence) is false. I agree with that. I also willing to challenge the first bit. I suspect an object can retain identity and lose essence. Coma patient; broken clock; aged athlete. |
15111 | In demonstration, the explanatory order must mirror the causal order of the phenomena [Koslicki] |
Full Idea: Demonstration encompasses more than deductive entailment, in that the explanatory order of priority represented in a successful demonstration must mirror precisely the causal order of priority present in the phenomena in question. | |
From: Kathrin Koslicki (Essence, Necessity and Explanation [2012], 13.1) | |
A reaction: She is referring to Aristotle's 'Posterior Analytics'. Put so clearly this sounds like an incredibly useful concept in discussing how we present good modern scientific explanations. Reinstating Aristotle is a major priority for philosophy! |
15115 | In a demonstration the middle term explains, by being part of the definition [Koslicki] |
Full Idea: In a proper demonstrative argument, the middle term must be explanatory of the conclusion, in a very specific sense: the middle term must state what properly belongs to the definition of the kind of phenomenon in question. | |
From: Kathrin Koslicki (Essence, Necessity and Explanation [2012], 13.3.1) | |
A reaction: So 'All men are mortal, S is a man, so S is mortal'. The middle term is 'man', which gives a generic explanation for why S is mortal. Explanation as categorisation? I don't think this is the whole story of Aristotelian explanation. |
15117 | Greek uses the same word for 'cause' and 'explanation' [Koslicki] |
Full Idea: The Greek does not disambiguate between 'cause' and 'explanation', since the same terms ('aitia' and 'aition') can be translated in both ways. | |
From: Kathrin Koslicki (Essence, Necessity and Explanation [2012], 13.3.1 n15) | |
A reaction: This is essential information if we are to understand Aristotle's Four Causes, which are quite baffling if we take 'causes' in the modern way. The are the Four Modes of Explanation. |
15114 | Discovering the Aristotelian essence of thunder will tell us why thunder occurs [Koslicki] |
Full Idea: Both the question 'what is thunder?', and the question 'why does thunder occur?', for Aristotle, are answered simultaneously, once it has been discovered what the essence of thunder it, i.e. what it is to be thunder. | |
From: Kathrin Koslicki (Essence, Necessity and Explanation [2012], 13.3.1 n10) | |
A reaction: I take this idea to be pretty much the whole story about essences. |
13304 | Learned men gain more in one day than others do in a lifetime [Posidonius] |
Full Idea: In a single day there lies open to men of learning more than there ever does to the unenlightened in the longest of lifetimes. | |
From: Posidonius (fragments/reports [c.95 BCE]), quoted by Seneca the Younger - Letters from a Stoic 078 | |
A reaction: These remarks endorsing the infinite superiority of the educated to the uneducated seem to have been popular in late antiquity. It tends to be the religions which discourage great learning, especially in their emphasis on a single book. |
13198 | Gravity is within matter because of its structure, and it can be explained. [Leibniz] |
Full Idea: I believe that both gravity and elasticity are in matter only because of the structure of the system and can be explained mechanically or through impulsion. | |
From: Gottfried Leibniz (Letters to Thomas Burnett [1703], 1699 draft) | |
A reaction: The significance of this remark is that gravity is held (in full knowledge of Newton's work) to be within matter, and not imposed from the outside. I believe we now postulate a particle as part of the explanation. |
20820 | Time is an interval of motion, or the measure of speed [Posidonius, by Stobaeus] |
Full Idea: Posidonius defined time thus: it is an interval of motion, or the measure of speed and slowness. | |
From: report of Posidonius (fragments/reports [c.95 BCE]) by John Stobaeus - Anthology 1.08.42 | |
A reaction: Hm. Can we define motion or speed without alluding to time? Looks like we have to define them as a conjoined pair, which means we cannot fully understand either of them. |