240 ideas
11300 | Agathon: good [PG] |
Full Idea: Agathon: good, the highest good | |
From: PG (Db (lexicon) [c.1001 BCE], 01) |
11301 | Aisthesis: perception, sensation, consciousness [PG] |
Full Idea: Aisthesis: perception, sensation, consciousness | |
From: PG (Db (lexicon) [c.1001 BCE], 02) |
11302 | Aitia / aition: cause, explanation [PG] |
Full Idea: Aitia / aition: cause, explanation | |
From: PG (Db (lexicon) [c.1001 BCE], 03) | |
A reaction: The consensus is that 'explanation' is the better translation, and hence that the famous Four Causes (in 'Physics') must really be understood as the Four Modes of Explanation. They then make far more sense. |
11303 | Akrasia: lack of control, weakness of will [PG] |
Full Idea: Akrasia: lack of control, weakness of will | |
From: PG (Db (lexicon) [c.1001 BCE], 04) | |
A reaction: The whole Greek debate (and modern debate, I would say) makes much more sense if we stick to 'lack of control' as the translation, and forget about weakness of will - and certainly give up 'incontinence' as a translation. |
11304 | Aletheia: truth [PG] |
Full Idea: Aletheia: truth | |
From: PG (Db (lexicon) [c.1001 BCE], 05) |
11305 | Anamnesis: recollection, remembrance [PG] |
Full Idea: Anamnesis: recollection, remembrance | |
From: PG (Db (lexicon) [c.1001 BCE], 06) | |
A reaction: This is used for Plato's doctrine that we recollect past lives. |
11306 | Ananke: necessity [PG] |
Full Idea: Ananke: necessity | |
From: PG (Db (lexicon) [c.1001 BCE], 07) |
11307 | Antikeimenon: object [PG] |
Full Idea: Antikeimenon: object | |
From: PG (Db (lexicon) [c.1001 BCE], 08) |
11375 | Apatheia: unemotional [PG] |
Full Idea: Apatheia: lack of involvement, unemotional | |
From: PG (Db (lexicon) [c.1001 BCE], 09) |
11308 | Apeiron: the unlimited, indefinite [PG] |
Full Idea: Apeiron: the unlimited, indefinite | |
From: PG (Db (lexicon) [c.1001 BCE], 10) | |
A reaction: Key term in the philosophy of Anaximander, the one unknowable underlying element. |
11376 | Aphairesis: taking away, abstraction [PG] |
Full Idea: Aphairesis: taking away, abstraction | |
From: PG (Db (lexicon) [c.1001 BCE], 11) |
11309 | Apodeixis: demonstration [PG] |
Full Idea: Apodeixis: demonstration, proof | |
From: PG (Db (lexicon) [c.1001 BCE], 12) |
11310 | Aporia: puzzle, question, anomaly [PG] |
Full Idea: Aporia: puzzle, question, anomaly | |
From: PG (Db (lexicon) [c.1001 BCE], 13) |
11311 | Arche: first principle, the basic [PG] |
Full Idea: Arché: first principle, the basic | |
From: PG (Db (lexicon) [c.1001 BCE], 14) | |
A reaction: Interchangeable with 'aitia' by Aristotle. The first principle and the cause are almost identical. |
11312 | Arete: virtue, excellence [PG] |
Full Idea: Areté: virtue, excellence | |
From: PG (Db (lexicon) [c.1001 BCE], 15) | |
A reaction: The word hovers between moral excellence and being good at what you do. Annas defends the older translation as 'virtue', rather than the modern 'excellence'. |
11313 | Chronismos: separation [PG] |
Full Idea: Chronismos: separation | |
From: PG (Db (lexicon) [c.1001 BCE], 16) |
11314 | Diairesis: division [PG] |
Full Idea: Diairesis: division, distinction | |
From: PG (Db (lexicon) [c.1001 BCE], 17) |
11315 | Dialectic: dialectic, discussion [PG] |
Full Idea: Dialectic: dialectic, discussion | |
From: PG (Db (lexicon) [c.1001 BCE], 18) |
11316 | Dianoia: intellection [cf. Noesis] [PG] |
Full Idea: Dianoia: intellection, understanding [cf. Noesis] | |
From: PG (Db (lexicon) [c.1001 BCE], 21) |
11317 | Diaphora: difference [PG] |
Full Idea: Diaphora: difference | |
From: PG (Db (lexicon) [c.1001 BCE], 22) |
11318 | Dikaiosune: moral goodness, justice [PG] |
Full Idea: Dikaiosune: moral goodness, justice | |
From: PG (Db (lexicon) [c.1001 BCE], 23) | |
A reaction: Usually translated as 'justice' in 'Republic', but it is a general term of moral approbation, not like the modern political and legal notion of 'justice'. 'Justice' actually seems to be bad translation. |
11319 | Doxa: opinion, belief [PG] |
Full Idea: Doxa: opinion, belief, judgement | |
From: PG (Db (lexicon) [c.1001 BCE], 24) |
11320 | Dunamis: faculty, potentiality, capacity [PG] |
Full Idea: Dunamis: faculty, potentiality, capacity | |
From: PG (Db (lexicon) [c.1001 BCE], 25) |
11321 | Eidos: form, idea [PG] |
Full Idea: Eidos: form, idea | |
From: PG (Db (lexicon) [c.1001 BCE], 26) | |
A reaction: In Plato it is the word best translated as 'Form' (Theory of...); in Aritotle's 'Categories' it designates the species, and in 'Metaphysics' it ends up naming the structural form of the species (and hence the essence) [Wedin p.120] |
11322 | Elenchos: elenchus, interrogation [PG] |
Full Idea: Elenchos: elenchus, interrogation | |
From: PG (Db (lexicon) [c.1001 BCE], 27) |
11323 | Empeiron: experience [PG] |
Full Idea: Empeiron: experience | |
From: PG (Db (lexicon) [c.1001 BCE], 28) |
11324 | Energeia: employment, actuality, power? [PG] |
Full Idea: Energeia: employment, actuality, power? | |
From: PG (Db (lexicon) [c.1001 BCE], 31) |
11325 | Enkrateia: control [PG] |
Full Idea: Enkrateia: control | |
From: PG (Db (lexicon) [c.1001 BCE], 32) | |
A reaction: See 'akrasia', of which this is the opposite. The enkratic person is controlled. |
11326 | Entelecheia: entelechy, having an end [PG] |
Full Idea: Entelecheia: entelechy, having an end | |
From: PG (Db (lexicon) [c.1001 BCE], 33) |
11327 | Epagoge: induction, explanation [PG] |
Full Idea: Epagoge: induction, explanation, leading on | |
From: PG (Db (lexicon) [c.1001 BCE], 34) |
11328 | Episteme: knowledge, understanding [PG] |
Full Idea: Episteme: knowledge, understanding | |
From: PG (Db (lexicon) [c.1001 BCE], 35) | |
A reaction: Note that 'episteme' can form a plural in Greek, but we can't say 'knowledges', so we have to say 'branches of knowledge', or 'sciences'. |
11329 | Epithumia: appetite [PG] |
Full Idea: Epithumia: appetite | |
From: PG (Db (lexicon) [c.1001 BCE], 36) |
11330 | Ergon: function [PG] |
Full Idea: Ergon: function, work | |
From: PG (Db (lexicon) [c.1001 BCE], 37) |
11331 | Eristic: polemic, disputation [PG] |
Full Idea: Eristic: polemic, disputation | |
From: PG (Db (lexicon) [c.1001 BCE], 38) | |
A reaction: This is confrontational argument, rather than the subtle co-operative dialogue of dialectic. British law courts and the House of Commons are founded on eristic, rather than on dialectic. Could there be a dialectical elected assembly? |
11332 | Eros: love [PG] |
Full Idea: Eros: love, desire | |
From: PG (Db (lexicon) [c.1001 BCE], 41) |
11333 | Eudaimonia: flourishing, happiness, fulfilment [PG] |
Full Idea: Eudaimonia: flourishing, happiness, fulfilment | |
From: PG (Db (lexicon) [c.1001 BCE], 42) | |
A reaction: Some people defend 'happiness' as the translation, but that seems to me wildly misleading, since eudaimonia is something like life going well, and certainly isn't a psychological state - and definitely not pleasure. |
11334 | Genos: type, genus [PG] |
Full Idea: Genos: type, genus, kind | |
From: PG (Db (lexicon) [c.1001 BCE], 43) |
11335 | Hexis: state, habit [PG] |
Full Idea: Hexis: state, habit | |
From: PG (Db (lexicon) [c.1001 BCE], 44) |
11336 | Horismos: definition [PG] |
Full Idea: Horismos: definition | |
From: PG (Db (lexicon) [c.1001 BCE], 45) |
11337 | Hule: matter [PG] |
Full Idea: Hule: matter | |
From: PG (Db (lexicon) [c.1001 BCE], 46) | |
A reaction: The first half of the 'hylomorphism' of Aristotle. See 'morphe'! |
11338 | Hupokeimenon: subject, underlying thing [cf. Tode ti] [PG] |
Full Idea: Hupokeimenon: subject, underlying thing, substratum [cf. Tode ti] | |
From: PG (Db (lexicon) [c.1001 BCE], 47) | |
A reaction: Literally 'that which lies under'. Latin version is 'substratum'. In Aristotle it is the problem, of explaining what lies under. It is not the theory that there is some entity called a 'substratum'. |
11339 | Kalos / kalon: beauty, fineness, nobility [PG] |
Full Idea: Kalos / kalon: beauty, fineness, nobility | |
From: PG (Db (lexicon) [c.1001 BCE], 48) | |
A reaction: A revealing Greek word, which is not only our rather pure notion of 'beauty', but also seems to mean something like wow!, and (very suggestive, this) applies as much to actions as to objects. |
11340 | Kath' hauto: in virtue of itself, essentially [PG] |
Full Idea: Kath' hauto: in virtue of itself, essentially | |
From: PG (Db (lexicon) [c.1001 BCE], 51) |
11341 | Kinesis: movement, process [PG] |
Full Idea: Kinesis: movement, process, change | |
From: PG (Db (lexicon) [c.1001 BCE], 52) |
11342 | Kosmos: order, universe [PG] |
Full Idea: Kosmos: order, universe | |
From: PG (Db (lexicon) [c.1001 BCE], 53) |
11343 | Logos: reason, account, word [PG] |
Full Idea: Logos: reason, account, word | |
From: PG (Db (lexicon) [c.1001 BCE], 54) |
11344 | Meson: the mean [PG] |
Full Idea: Meson: the mean | |
From: PG (Db (lexicon) [c.1001 BCE], 55) | |
A reaction: This is not the 'average', and hence not some theoretical mid-point. I would call it the 'appropriate compromise', remembering that an extreme may be appropriate in certain circumstances. |
11345 | Metechein: partaking, sharing [PG] |
Full Idea: Metechein: partaking, sharing | |
From: PG (Db (lexicon) [c.1001 BCE], 56) | |
A reaction: The key word in Plato for the difficult question of the relationships between the Forms and the particulars. The latter 'partake' of the former. Hm. Compare modern 'instantiation', which strikes me as being equally problematic. |
11377 | Mimesis: imitation, fine art [PG] |
Full Idea: Mimesis: imitation, fine art | |
From: PG (Db (lexicon) [c.1001 BCE], 57) |
11346 | Morphe: form [PG] |
Full Idea: Morphe: form | |
From: PG (Db (lexicon) [c.1001 BCE], 58) |
11347 | Noesis: intellection, rational thought [cf. Dianoia] [PG] |
Full Idea: Noesis: intellection, rational thought [cf. Dianoia] | |
From: PG (Db (lexicon) [c.1001 BCE], 59) |
11348 | Nomos: convention, law, custom [PG] |
Full Idea: Nomos: convention, law, custom | |
From: PG (Db (lexicon) [c.1001 BCE], 61) |
11349 | Nous: intuition, intellect, understanding [PG] |
Full Idea: Nous: intuition, intellect | |
From: PG (Db (lexicon) [c.1001 BCE], 62) | |
A reaction: There is a condensed discussion of 'nous' in Aristotle's Posterior Analytics B.19 |
11350 | Orexis: desire [PG] |
Full Idea: Orexis: desire | |
From: PG (Db (lexicon) [c.1001 BCE], 63) |
11351 | Ousia: substance, (primary) being, [see 'Prote ousia'] [PG] |
Full Idea: Ousia: substance, (primary) being [see 'Prote ousia'] | |
From: PG (Db (lexicon) [c.1001 BCE], 64) | |
A reaction: It is based on the verb 'to be'. Latin therefore translated it as 'essentia' (esse: to be), and we have ended up translating it as 'essence', but this is wrong! 'Being' is the best translation, and 'substance' is OK. It is the problem, not the answer. |
11352 | Pathos: emotion, affection, property [PG] |
Full Idea: Pathos: emotion, affection, property | |
From: PG (Db (lexicon) [c.1001 BCE], 65) |
11353 | Phantasia: imagination [PG] |
Full Idea: Phantasia: imagination | |
From: PG (Db (lexicon) [c.1001 BCE], 66) |
11354 | Philia: friendship [PG] |
Full Idea: Philia: friendship | |
From: PG (Db (lexicon) [c.1001 BCE], 67) |
11355 | Philosophia: philosophy, love of wisdom [PG] |
Full Idea: Philosophia: philosophy, love of wisdom | |
From: PG (Db (lexicon) [c.1001 BCE], 68) | |
A reaction: The point of the word is its claim only to love wisdom, and not actually to be wise. |
11356 | Phronesis: prudence, practical reason, common sense [PG] |
Full Idea: Phronesis: prudence, practical reason, common sense | |
From: PG (Db (lexicon) [c.1001 BCE], 71) | |
A reaction: None of the experts use my own translation, which is 'common sense', but that seems to me to perfectly fit all of Aristotle's discussions of the word in 'Ethics'. 'Prudence' seems a daft translation in modern English. |
11357 | Physis: nature [PG] |
Full Idea: Physis: nature | |
From: PG (Db (lexicon) [c.1001 BCE], 72) |
11358 | Praxis: action, activity [PG] |
Full Idea: Praxis: action, activity | |
From: PG (Db (lexicon) [c.1001 BCE], 73) |
11359 | Prote ousia: primary being [PG] |
Full Idea: Prote ousia: primary being | |
From: PG (Db (lexicon) [c.1001 BCE], 74) | |
A reaction: The main topic of investigation in Aristotle's 'Metaphysics'. 'Ousia' is the central problem of the text, NOT the answer to the problem. |
11360 | Psuche: mind, soul, life [PG] |
Full Idea: Psuche: mind, soul, life | |
From: PG (Db (lexicon) [c.1001 BCE], 75) | |
A reaction: The interesting thing about this is that we have tended to translate it as 'soul', but Aristotle says plants have it, and not merely conscious beings. It is something like the 'form' of a living thing, but then 'form' is a misleading translation too. |
11361 | Sophia: wisdom [PG] |
Full Idea: Sophia: wisdom | |
From: PG (Db (lexicon) [c.1001 BCE], 76) |
11362 | Sophrosune: moderation, self-control [PG] |
Full Idea: Sophrosune: moderation, self-control | |
From: PG (Db (lexicon) [c.1001 BCE], 77) |
11363 | Stoicheia: elements [PG] |
Full Idea: Stoicheia: elements | |
From: PG (Db (lexicon) [c.1001 BCE], 78) |
11364 | Sullogismos: deduction, syllogism [PG] |
Full Idea: Sullogismos: deduction, syllogism | |
From: PG (Db (lexicon) [c.1001 BCE], 81) |
11365 | Techne: skill, practical knowledge [PG] |
Full Idea: Techne: skill, practical knowledge | |
From: PG (Db (lexicon) [c.1001 BCE], 82) |
11366 | Telos: purpose, end [PG] |
Full Idea: Telos: purpose, end | |
From: PG (Db (lexicon) [c.1001 BCE], 83) |
11367 | Theoria: contemplation [PG] |
Full Idea: Theoria: contemplation | |
From: PG (Db (lexicon) [c.1001 BCE], 84) |
11368 | Theos: god [PG] |
Full Idea: Theos: god | |
From: PG (Db (lexicon) [c.1001 BCE], 85) |
11369 | Ti esti: what-something-is, essence [PG] |
Full Idea: Ti esti: the what-something-is, essence, whatness | |
From: PG (Db (lexicon) [c.1001 BCE], 86) |
11370 | Timoria: vengeance, punishment [PG] |
Full Idea: Timoria: vengeance, punishment | |
From: PG (Db (lexicon) [c.1001 BCE], 87) |
11371 | To ti en einai: essence, what-it-is-to-be [PG] |
Full Idea: To ti en einai: essence, what-it-is-to-be | |
From: PG (Db (lexicon) [c.1001 BCE], 88) | |
A reaction: This is Aristotle's main term for what we would now call the 'essence'. It is still not a theory of essence, merely an identification of the target. 'Form' is the nearest we get to his actual theory. |
11372 | To ti estin: essence [PG] |
Full Idea: To ti estin: essence | |
From: PG (Db (lexicon) [c.1001 BCE], 91) |
11373 | Tode ti: this-such, subject of predication [cf. hupokeimenon] [PG] |
Full Idea: Tode ti: this-something, subject of predication, thisness [cf. hupokeimenon] | |
From: PG (Db (lexicon) [c.1001 BCE], 92) |
11461 | 323 (roughly): Euclid wrote 'Elements', summarising all of geometry [PG] |
Full Idea: Euclid: In around 323 BCE Euclid wrote his 'Elements', summarising all of known geometry. | |
From: PG (Db (chronology) [2030]) |
11390 | 1000 (roughly): Upanishads written (in Sanskrit); religious and philosophical texts [PG] |
Full Idea: In around 1000 BCE the Upanishads were written, the most philosophical of ancient Hindu texts | |
From: PG (Db (chronology) [2030], 0001) |
11391 | 750 (roughly): the Book of Genesis written by Hebrew writers [PG] |
Full Idea: In around 750 BCE the Book of Genesis was written by an anonymous jewish writer | |
From: PG (Db (chronology) [2030], 0250) |
11392 | 586: eclipse of the sun on the coast of modern Turkey was predicted by Thales of Miletus [PG] |
Full Idea: In 585 BCE there was an eclipse of the sun, which Thales of Miletus is said to have predicted | |
From: PG (Db (chronology) [2030], 0415) |
11395 | 570: Anaximander flourished in Miletus [PG] |
Full Idea: Anaximander: In around 570 BCE the philosopher and astronomer Anaximander flourished in Miletus | |
From: PG (Db (chronology) [2030], 0430) |
11396 | 563: the Buddha born in northern India [PG] |
Full Idea: In around 563 BCE Siddhartha Gautama, the Buddha, was born in northern India | |
From: PG (Db (chronology) [2030], 0437) |
11398 | 540: Lao Tzu wrote 'Tao Te Ching', the basis of Taoism [PG] |
Full Idea: In around 540 BCE Lao Tzu wrote the 'Tao Te Ching', the basis of Taoism | |
From: PG (Db (chronology) [2030], 0460) |
11400 | 529: Pythagoras created his secretive community at Croton in Sicily [PG] |
Full Idea: In around 529 BCE Pythagoras set up a community in Croton, with strict and secret rules and teachings | |
From: PG (Db (chronology) [2030], 0471) |
11403 | 500: Heraclitus flourishes at Ephesus, in modern Turkey [PG] |
Full Idea: In around 500 BCE Heraclitus flourished in the city of Ephesus in Ionia | |
From: PG (Db (chronology) [2030], 0500) |
11404 | 496: Confucius travels widely, persuading rulers to be more moral [PG] |
Full Idea: In 496 BCE Confucius began a period of wandering, to persuade rulers to be more moral | |
From: PG (Db (chronology) [2030], 0504) |
11408 | 472: Empedocles persuades his city (Acragas in Sicily) to become a democracy [PG] |
Full Idea: In 472 BCE Empedocles helped his city of Acragas change to democracy | |
From: PG (Db (chronology) [2030], 0528) |
11412 | 450 (roughly): Parmenides and Zeno visit Athens from Italy [PG] |
Full Idea: In around 450 BCE Parmenides and Zeno visited the festival in Athens | |
From: PG (Db (chronology) [2030], 0550) |
11414 | 445: Protagoras helps write laws for the new colony of Thurii [PG] |
Full Idea: In 443 BCE Protagoras helped write the laws for the new colony of Thurii | |
From: PG (Db (chronology) [2030], 0557) |
11417 | 436 (roughly): Anaxagoras is tried for impiety, and expelled from Athens [PG] |
Full Idea: In about 436 BCE Anaxagoras was tried on a charge of impiety and expelled from Athens | |
From: PG (Db (chronology) [2030], 0564) |
11535 | 170 (roughly): Marcus Aurelius wrote his private stoic meditations [PG] |
Full Idea: In around 170 CE the Emperor Marcus Aurelius wrote his 'Meditations' for private reading. | |
From: PG (Db (chronology) [2030], 1170) |
11537 | -200 (roughly): Sextus Empiricus wrote a series of books on scepticism [PG] |
Full Idea: In around 200 CE Sextus Empiricus wrote a series of books (which survive) defending scepticism | |
From: PG (Db (chronology) [2030], 1200) |
11541 | 263: Porphyry began to study with Plotinus in Rome [PG] |
Full Idea: In 263 CE Porphyry joined Plotinus' classes in Rome | |
From: PG (Db (chronology) [2030], 1263) |
11545 | 310: Christianity became the official religion of the Roman empire [PG] |
Full Idea: In 310 CE Christianity became the official religion of the Roman Empire | |
From: PG (Db (chronology) [2030], 1310) |
11549 | 387: Ambrose converts Augustine to Christianity [PG] |
Full Idea: In 387 CE Augustine converted to Christianity in Milan, guided by St Ambrose | |
From: PG (Db (chronology) [2030], 1387) |
11555 | 523: Boethius imprisoned at Pavia, and begins to write [PG] |
Full Idea: In 523 CE Boethius was imprisoned in exile at Pavia, and wrote 'Consolations of Philosophy' | |
From: PG (Db (chronology) [2030], 1523) |
11557 | 529: the emperor Justinian closes all the philosophy schools in Athens [PG] |
Full Idea: In 529 CE the Emperor Justinian closed all the philosophy schools in Athens | |
From: PG (Db (chronology) [2030], 1529) |
11421 | 427: Gorgias visited Athens as ambassador for Leontini [PG] |
Full Idea: In 427 BCE Gorgias of Leontini visited Athens as an ambassador for his city | |
From: PG (Db (chronology) [2030], 0573) |
11425 | 399: Socrates executed (with Plato absent through ill health) [PG] |
Full Idea: In 399 BCE Plato was unwell, and was not present at the death of Socrates | |
From: PG (Db (chronology) [2030], 0601) |
11432 | 387 (roughly): Plato returned to Athens, and founded the Academy [PG] |
Full Idea: In about 387 BCE Plato returned to Athens and founded his new school at the Academy | |
From: PG (Db (chronology) [2030], 0613) |
11433 | 387 (roughly): Aristippus the Elder founder a hedonist school at Cyrene [PG] |
Full Idea: In around 387 BCE a new school was founded at Cyrene by Aristippus the elder | |
From: PG (Db (chronology) [2030], 0613) |
11440 | 367: the teenaged Aristotle came to study at the Academy [PG] |
Full Idea: In 367 BCE the seventeen-year-old Aristotle came south to study at the Academy | |
From: PG (Db (chronology) [2030], 0633) |
11443 | 360 (roughly): Diogenes of Sinope lives in a barrel in central Athens [PG] |
Full Idea: In around 360 BCE Diogenes of Sinope was living in a barrel in the Agora in Athens | |
From: PG (Db (chronology) [2030], 0640) |
11445 | 347: death of Plato [PG] |
Full Idea: In 347 BCE Plato died | |
From: PG (Db (chronology) [2030], 0653) |
11454 | 343: Aristotle becomes tutor to 13 year old Alexander (the Great) [PG] |
Full Idea: In 343 BCE at Stagira Aristotle became personal tutor to the thirteen-year-old Alexander (the Great) | |
From: PG (Db (chronology) [2030], 0657) |
11456 | 335: Arisotle founded his school at the Lyceum in Athens [PG] |
Full Idea: In 335 BCE Aristotle founded the Lyceum in Athens | |
From: PG (Db (chronology) [2030], 0665) |
11459 | 330 (roughly): Chuang Tzu wrote his Taoist book [PG] |
Full Idea: In around 330 BCE Chuang Tzu wrote a key work in the Taoist tradition | |
From: PG (Db (chronology) [2030], 0670) |
11465 | 322: Aristotle retired to Chalcis, and died there [PG] |
Full Idea: In 322 BCE Aristotle retired to Chalcis in Euboea, where he died | |
From: PG (Db (chronology) [2030], 0678) |
11468 | 307 (roughly): Epicurus founded his school at the Garden in Athens [PG] |
Full Idea: In about 307 BCE Epicurus founded his school at the Garden in Athens | |
From: PG (Db (chronology) [2030], 0693) |
11470 | 301 (roughly): Zeno of Citium founded Stoicism at the Stoa Poikile in Athens [PG] |
Full Idea: In about 301 BCE the Stoic school was founded by Zeno of Citium in the Stoa Poikile in Athens | |
From: PG (Db (chronology) [2030], 0699) |
11483 | 261: Cleanthes replaced Zeno as head of the Stoa [PG] |
Full Idea: In 261 BCE Cleanthes took over from Zeno as head of the Stoa. | |
From: PG (Db (chronology) [2030], 0739) |
11486 | 229 (roughly): Chrysippus replaced Cleanthes has head of the Stoa [PG] |
Full Idea: In about 229 BCE Chrysippus took over from Cleanthes as the head of the Stoic school | |
From: PG (Db (chronology) [2030], 0771) |
11492 | 157 (roughly): Carneades became head of the Academy [PG] |
Full Idea: In around 157 BCE Carneades took over as head of the Academy from Hegesinus | |
From: PG (Db (chronology) [2030], 0843) |
11509 | 85: most philosophical activity moves to Alexandria [PG] |
Full Idea: In around 85 BCE Athens went into philosophical decline, and leadership moved to Alexandria | |
From: PG (Db (chronology) [2030], 0915) |
11513 | 78: Cicero visited the stoic school on Rhodes [PG] |
Full Idea: In around 78 BCE Cicero visited the school of Posidonius in Rhodes. | |
From: PG (Db (chronology) [2030], 0922) |
11516 | 60 (roughly): Lucretius wrote his Latin poem on epicureanism [PG] |
Full Idea: In around 60 BCE Lucretius wrote his Latin poem on Epicureanism | |
From: PG (Db (chronology) [2030], 0940) |
11528 | 65: Seneca forced to commit suicide by Nero [PG] |
Full Idea: In 65 CE Seneca was forced to commit suicide by the Emperor Nero. | |
From: PG (Db (chronology) [2030], 1065) |
11531 | 80: the discourses of the stoic Epictetus are written down [PG] |
Full Idea: In around 80 CE the 'Discourses' of the freed slave Epictetus were written down in Rome. | |
From: PG (Db (chronology) [2030], 1080) |
11558 | 622 (roughly): Mohammed writes the Koran [PG] |
Full Idea: Mohammed: In about 622 CE Muhammed wrote the basic text of Islam, the Koran. | |
From: PG (Db (chronology) [2030], 1622) |
11559 | 642: Arabs close the philosophy schools in Alexandria [PG] |
Full Idea: In 642 CE Alexandria was captured by the Arabs, and the philosophy schools were closed | |
From: PG (Db (chronology) [2030], 1642) |
11560 | 910 (roughly): Al-Farabi wrote Arabic commentaries on Aristotle [PG] |
Full Idea: Alfarabi: In around 910 CE Al-Farabi explained and expanded Aristotle for the Islamic world. | |
From: PG (Db (chronology) [2030], 1910) |
11562 | 1015 (roughly): Ibn Sina (Avicenna) writes a book on Aristotle [PG] |
Full Idea: In around 1015 Avicenna produced his Platonised version of Aristotle in 'The Healing' | |
From: PG (Db (chronology) [2030], 2015) |
11564 | 1090: Anselm publishes his proof of the existence of God [PG] |
Full Idea: Anselm: In about 1090 St Anselm of Canterbury publishes his Ontological Proof of God's existence | |
From: PG (Db (chronology) [2030], 2090) |
11566 | 1115: Abelard is the chief logic teacher in Paris [PG] |
Full Idea: In around 1115 Abelard became established as the chief logic teacher in Paris | |
From: PG (Db (chronology) [2030], 2115) |
11573 | 1166: Ibn Rushd (Averroes) wrote extensive commentaries on Aristotle [PG] |
Full Idea: In around 1166 Averroes (Ibn Rushd), in Seville, wrote extensive commentaries on Aristotle | |
From: PG (Db (chronology) [2030], 2166) |
11581 | 1266: Aquinas began writing 'Summa Theologica' [PG] |
Full Idea: In 1266 Aquinas began writing his great theological work, the 'Summa Theologica' | |
From: PG (Db (chronology) [2030], 2266) |
11586 | 1280: after his death, the teaching of Aquinas becomes official Dominican doctrine [PG] |
Full Idea: In around 1280 Aquinas's teaching became the official theology of the Dominican order | |
From: PG (Db (chronology) [2030], 2280) |
11591 | 1328: William of Ockham decides the Pope is a heretic, and moves to Munich [PG] |
Full Idea: In 1328 William of Ockham decided the Pope was a heretic, and moved to Munich | |
From: PG (Db (chronology) [2030], 2328) |
17916 | 1347: the Church persecutes philosophical heresies [PG] |
Full Idea: In 1347 the Church began extensive persecution of unorthodox philosophical thought | |
From: PG (Db (chronology) [2030], 2347) |
11593 | 1470: Marsilio Ficino founds a Platonic Academy in Florence [PG] |
Full Idea: In around 1470 Marsilio Ficino founded a Platonic Academy in Florence | |
From: PG (Db (chronology) [2030], 2470) |
11596 | 1513: Machiavelli wrote 'The Prince' [PG] |
Full Idea: In 1513 Machiavelli wrote 'The Prince', a tough view of political theory. | |
From: PG (Db (chronology) [2030], 2513) |
11599 | 1543: Copernicus publishes his heliocentric view of the solar system [PG] |
Full Idea: In 1543 Nicholas Copernicus, a Polish monk, publishes his new theory of the solar system. | |
From: PG (Db (chronology) [2030], 2543) |
11601 | 1580: Montaigne publishes his essays [PG] |
Full Idea: In 1580 Montaigne published a volume of his 'Essays' | |
From: PG (Db (chronology) [2030], 2580) |
11607 | 1600: Giordano Bruno was burned at the stake in Rome [PG] |
Full Idea: In 1600 Giordano Bruno was burnt at the stake in Rome, largely for endorsing Copernicus | |
From: PG (Db (chronology) [2030], 2600) |
11613 | 1619: Descartes's famous day of meditation inside a stove [PG] |
Full Idea: In 1619 Descartes had a famous day of meditation in a heated stove at Ulm | |
From: PG (Db (chronology) [2030], 2619) |
11614 | 1620: Bacon publishes 'Novum Organum' [PG] |
Full Idea: Francis Bacon: In 1620 Bacon published his 'Novum Organon', urging the rise of experimental science | |
From: PG (Db (chronology) [2030], 2620) |
11619 | 1633: Galileo convicted of heresy by the Inquisition [PG] |
Full Idea: In 1633 Galileo was condemned to life emprisonment for contradicting church teachings. | |
From: PG (Db (chronology) [2030], 2633) |
11623 | 1641: Descartes publishes his 'Meditations' [PG] |
Full Idea: In 1641 Descartes published his well-known 'Meditations', complete with Objections and Replies | |
From: PG (Db (chronology) [2030], 2641) |
11626 | 1650: death of Descartes, in Stockholm [PG] |
Full Idea: In 1650 Descartes died in Stockholm, after stressful work for Queen Christina | |
From: PG (Db (chronology) [2030], 2650) |
11627 | 1651: Hobbes publishes 'Leviathan' [PG] |
Full Idea: In 1651 Hobbes published his great work on politics and contract morality, 'Leviathan' | |
From: PG (Db (chronology) [2030], 2651) |
11633 | 1662: the Port Royal Logic is published [PG] |
Full Idea: Antoine Arnauld: In 1662 Arnauld and Nicole published their famous text, the 'Port-Royal Logic' | |
From: PG (Db (chronology) [2030], 2662) |
11634 | 1665: Spinoza writes his 'Ethics' [PG] |
Full Idea: In 1665 the first draft of Spinoza's 'Ethics', his major work, was finished, and published posthumously | |
From: PG (Db (chronology) [2030], 2665) |
11643 | 1676: Leibniz settled as librarian to the Duke of Brunswick [PG] |
Full Idea: In 1676 Leibniz became librarian to the Duke of Brunswick, staying for the rest of his life | |
From: PG (Db (chronology) [2030], 2676) |
11649 | 1687: Newton publishes his 'Principia Mathematica' [PG] |
Full Idea: In 1687 Newton published his 'Principia', containing his theory of gravity. | |
From: PG (Db (chronology) [2030], 2687) |
11652 | 1690: Locke publishes his 'Essay' [PG] |
Full Idea: In 1690 Locke published his 'Essay', his major work on empiricism | |
From: PG (Db (chronology) [2030], 2690) |
11654 | 1697: Bayle publishes his 'Dictionary' [PG] |
Full Idea: Pierre Bayle: In about 1697 Pierre Bayle published his 'Historical and Critical Dictionary' | |
From: PG (Db (chronology) [2030], 2697) |
11659 | 1713: Berkeley publishes his 'Three Dialogues' [PG] |
Full Idea: In 1713 Berkeley published a popular account of his empiricist idealism in 'Three Dialogues' | |
From: PG (Db (chronology) [2030], 2713) |
11666 | 1734: Voltaire publishes his 'Philosophical Letters' [PG] |
Full Idea: Francois-Marie Voltaire: In 1734 Voltaire's 'Lettres Philosophiques' praised liberalism and empiricism | |
From: PG (Db (chronology) [2030], 2734) |
11667 | 1739: Hume publishes his 'Treatise' [PG] |
Full Idea: In 1739 Hume returned to Edinburgh and published his 'Treatise', but it sold very few copies | |
From: PG (Db (chronology) [2030], 2739) |
11675 | 1762: Rousseau publishes his 'Social Contract' [PG] |
Full Idea: In 1762 Rousseau published his 'Social Contract', basing politics on the popular will | |
From: PG (Db (chronology) [2030], 2762) |
11682 | 1781: Kant publishes his 'Critique of Pure Reason' [PG] |
Full Idea: In 1781 Kant published his first great work, the 'Critique of Pure Reason' | |
From: PG (Db (chronology) [2030], 2781) |
11683 | 1785: Reid publishes his essays defending common sense [PG] |
Full Idea: In 1785 Thomas Reid, based in Glasgow, published essays defending common sense. | |
From: PG (Db (chronology) [2030], 2785) |
11687 | 1798: the French Revolution [PG] |
Full Idea: In 1789 the French Revolution gave strong impetus to the anti-rational 'Romantic' movement | |
From: PG (Db (chronology) [2030], 2789) |
11694 | 1807: Hegel publishes his 'Phenomenology of Spirit' [PG] |
Full Idea: In 1807 Hegel published his first major work, the 'Phenomenology of Spirit' | |
From: PG (Db (chronology) [2030], 2807) |
11701 | 1818: Schopenhauer publishes his 'World as Will and Idea' [PG] |
Full Idea: In 1818 Schopenhauer published 'The World as Will and Idea', his major work | |
From: PG (Db (chronology) [2030], 2818) |
11710 | 1840: Kierkegaard is writing extensively in Copenhagen [PG] |
Full Idea: In around 1840 Kierkegaard lived a quiet life as a writer in Copenhagen | |
From: PG (Db (chronology) [2030], 2840) |
11713 | 1843: Mill publishes his 'System of Logic' [PG] |
Full Idea: In 1843 Mill published his 'System of Logic' | |
From: PG (Db (chronology) [2030], 2843) |
11715 | 1848: Marx and Engels publis the Communist Manifesto [PG] |
Full Idea: Karl Marx: In 1848 Marx and Engels published their 'Communist Manifesto' | |
From: PG (Db (chronology) [2030], 2848) |
11717 | 1859: Darwin publishes his 'Origin of the Species' [PG] |
Full Idea: Charles Darwin: In 1859 Charles Darwin published his theory of natural selection in 'Origin of the Species'. | |
From: PG (Db (chronology) [2030], 2859) |
11721 | 1861: Mill publishes 'Utilitarianism' [PG] |
Full Idea: In 1861 Mill published his book 'Utilitarianism' | |
From: PG (Db (chronology) [2030], 2861) |
11724 | 1867: Marx begins publishing 'Das Kapital' [PG] |
Full Idea: Karl Marx: In 1867 Karl Marx began publishing his political work 'Das Kapital' | |
From: PG (Db (chronology) [2030], 2867) |
11733 | 1879: Peirce taught for five years at Johns Hopkins University [PG] |
Full Idea: In 1879 Peirce began five years of teaching at Johns Hopkins University | |
From: PG (Db (chronology) [2030], 2879) |
17907 | 1879: Frege invents predicate logic [PG] |
Full Idea: In 1879 Frege published his 'Concept Script', which created predicate logic | |
From: PG (Db (chronology) [2030], 2879) |
17909 | 1892: Frege's essay 'Sense and Reference' [PG] |
Full Idea: In 1892 Frege published his famous essay 'Sense and Reference' (Sinn und Bedeutung) | |
From: PG (Db (chronology) [2030], 2882) |
17908 | 1884: Frege publishes his 'Foundations of Arithmetic' [PG] |
Full Idea: In 1884 Frege published his 'Foundations of Arithmetic', the beginning of logicism | |
From: PG (Db (chronology) [2030], 2884) |
11735 | 1885: Nietzsche completed 'Thus Spake Zarathustra' [PG] |
Full Idea: In about 1885 Nietzsche completed his book 'Also Sprach Zarathustra' | |
From: PG (Db (chronology) [2030], 2885) |
17911 | 1888: Dedekind publishes axioms for arithmetic [PG] |
Full Idea: In 1888 Dedekind created simple axioms for arithmetic (the Peano Axioms) | |
From: PG (Db (chronology) [2030], 2888) |
11740 | 1890: James published 'Principles of Psychology' [PG] |
Full Idea: In 1890 James published his 'Principles of Psychology' | |
From: PG (Db (chronology) [2030], 2890) |
11742 | 1895 (roughly): Freud developed theories of the unconscious [PG] |
Full Idea: In around 1895 Sigmund Freud developed his theories of the unconscious mind | |
From: PG (Db (chronology) [2030], 2895) |
11745 | 1900: Husserl began developing Phenomenology [PG] |
Full Idea: In 1900 Edmund Husserl began presenting his new philosophy of Phenomenology | |
From: PG (Db (chronology) [2030], 2900) |
11746 | 1903: Moore published 'Principia Ethica' [PG] |
Full Idea: In 1903 G.E. Moore published his 'Principia Ethica', attacking naturalistic ethics. | |
From: PG (Db (chronology) [2030], 2903) |
11747 | 1904: Dewey became professor at Columbia University [PG] |
Full Idea: In 1904 Dewey moved to Columbia University in New York. | |
From: PG (Db (chronology) [2030], 2904) |
17910 | 1908: Zermelo publishes axioms for set theory [PG] |
Full Idea: In 1908 Zermelo published an axiomatisation of the new set theory | |
From: PG (Db (chronology) [2030], 2908) |
11752 | 1910: Russell and Whitehead begin publishing 'Principia Mathematica' [PG] |
Full Idea: In 1910 Russell began publication of 'Principia Mathematica', with Whitehead | |
From: PG (Db (chronology) [2030], 2910) |
11756 | 1912: Russell meets Wittgenstein in Cambridge [PG] |
Full Idea: In 1912 Russell met Wittgenstein at Cambridge | |
From: PG (Db (chronology) [2030], 2912) |
11762 | 1921: Wittgenstein's 'Tractatus' published [PG] |
Full Idea: In 1921 Wittgenstein's 'Tractatus' was published | |
From: PG (Db (chronology) [2030], 2921) |
11765 | 1927: Heidegger's 'Being and Time' published [PG] |
Full Idea: In 1927 Heidegger's major work, 'Being and Time', was published | |
From: PG (Db (chronology) [2030], 2927) |
11768 | 1930: Frank Ramsey dies at 27 [PG] |
Full Idea: In 1930 Frank Ramsey died at the age of 27. | |
From: PG (Db (chronology) [2030], 2930) |
11770 | 1931: Gödel's Incompleteness Theorems [PG] |
Full Idea: Kurt Gödel: In 1931 the mathematician Kurt Gödel publishes his Incompleteness Theorems. | |
From: PG (Db (chronology) [2030], 2931) |
11773 | 1933: Tarski's theory of truth [PG] |
Full Idea: Alfred Tarski: In 1933 Alfred Tarski wrote a famous paper presenting a semantic theory of truth. | |
From: PG (Db (chronology) [2030], 2933) |
11783 | 1942: Camus published 'The Myth of Sisyphus' [PG] |
Full Idea: In 1942 Camus published 'The Myth of Sisyphus', exploring suicide and the absurd | |
From: PG (Db (chronology) [2030], 2942) |
11784 | 1943: Sartre's 'Being and Nothingness' [PG] |
Full Idea: In 1943 Jean-Paul Sartre published his major work, 'Being and Nothingness' | |
From: PG (Db (chronology) [2030], 2943) |
11787 | 1945: Merleau-Ponty's 'Phenomenology of Perception' [PG] |
Full Idea: Maurice Merleau-Ponty: In 1945 Maurice Merleau-Pont published 'The Phenomenology of Perception' | |
From: PG (Db (chronology) [2030], 2945) |
17918 | 1947: Carnap published 'Meaning and Necessity' [PG] |
Full Idea: In 1947 Carnap published 'Meaning and Necessity' | |
From: PG (Db (chronology) [2030], 2947) |
11794 | 1950: Quine's essay 'Two Dogmas of Empiricism' [PG] |
Full Idea: In 1950 Willard Quine published 'Two Dogmas of Empiricism', attacking analytic truth | |
From: PG (Db (chronology) [2030], 2950) |
17917 | 1953: Wittgenstein's 'Philosophical Investigations' [PG] |
Full Idea: In 1953 Wittgenstein's posthumous work 'Philosophical Investigations' is published | |
From: PG (Db (chronology) [2030], 2953) |
17919 | 1956: Place proposed mind-brain identity [PG] |
Full Idea: In 1956 U.T. Place proposed that the mind is identical to the brain | |
From: PG (Db (chronology) [2030], 2956) |
11804 | 1962: Kuhn's 'Structure of Scientific Revolutions' [PG] |
Full Idea: In 1962 Thomas Kuhn's 'Structure of Scientific Revolutions' questioned the authority of science | |
From: PG (Db (chronology) [2030], 2962) |
17921 | 1967: Putnam proposed functionalism of the mind [PG] |
Full Idea: In 1967 Putname proposed the functionalist view of the mind | |
From: PG (Db (chronology) [2030], 2967) |
11808 | 1971: Rawls's 'A Theory of Justice' [PG] |
Full Idea: In 1971 John Rawls published his famous defence of liberalism in 'A Theory of Justice' | |
From: PG (Db (chronology) [2030], 2971) |
11810 | 1972: Kripke publishes 'Naming and Necessity' [PG] |
Full Idea: In 1972 Saul Kripke's 'Naming and Necessity' revised theories about language and reality | |
From: PG (Db (chronology) [2030], 2972) |
11813 | 1975: Singer publishes 'Animal Rights' [PG] |
Full Idea: Peter Singer: In 1975 Peter Singer's 'Animal Rights' turned the attention of philosophers to applied ethics. | |
From: PG (Db (chronology) [2030], 2975) |
17920 | 1975: Putnam published his Twin Earth example [PG] |
Full Idea: In 1975 Putnam published 'The Meaning of 'Meaning'', containing his Twin Earth example | |
From: PG (Db (chronology) [2030], 2975) |
11820 | 1986: David Lewis publishes 'On the Plurality of Worlds' [PG] |
Full Idea: In 1986 David Lewis published 'On the Plurality of Worlds', about possible worlds. | |
From: PG (Db (chronology) [2030], 2986) |
4465 | Note that "is" can assert existence, or predication, or identity, or classification [PG] |
Full Idea: There are four uses of the word "is" in English: as existence ('he is at home'), as predication ('he is tall'), as identity ('he is the man I saw'), and as classification ('he is British'). | |
From: PG (Db (ideas) [2031]) | |
A reaction: This seems a nice instance of the sort of point made by analytical philosophy, which can lead to horrible confusion in other breeds of philosophy when it is overlooked. |
11051 | Frege's logical approach dominates the analytical tradition [Hanna] |
Full Idea: Pure logic constantly controls Frege's philosophy, and in turn Frege's logically oriented philosophy constantly controls the analytic tradition. | |
From: Robert Hanna (Rationality and Logic [2006], 1.1) | |
A reaction: Hanna seeks to reintroduce the dreaded psychological aspect of logic, and I say 'good for him'. |
11054 | Scientism says most knowledge comes from the exact sciences [Hanna] |
Full Idea: Scientism says that the exact sciences are the leading sources of knowledge about the world. | |
From: Robert Hanna (Rationality and Logic [2006], 1.2) | |
A reaction: I almost agree, but I would describe the exact sciences as the chief 'evidence' for our knowledge, with the chief 'source' being our own ability to make coherent sense of the evidence. Exact sciences rest on mathematics. |
11070 | 'Denying the antecedent' fallacy: φ→ψ, ¬φ, so ¬ψ [Hanna] |
Full Idea: The fallacy of 'denying the antecedent' is of the form φ→ψ, ¬φ, so ¬ψ. | |
From: Robert Hanna (Rationality and Logic [2006], 5.4) |
11071 | 'Affirming the consequent' fallacy: φ→ψ, ψ, so φ [Hanna] |
Full Idea: The fallacy of 'affirming the consequent' is of the form φ→ψ, ψ, so φ. | |
From: Robert Hanna (Rationality and Logic [2006], 5.4) |
11088 | We can list at least fourteen informal fallacies [Hanna] |
Full Idea: Informal fallacies: appeals to force, circumstantial factors, ignorance, pity, popular consensus, authority, generalisation, confused causes, begging the question, complex questions, irrelevance, equivocation, black-and-white, slippery slope etc. | |
From: Robert Hanna (Rationality and Logic [2006], 7.3) |
4686 | Fallacies are errors in reasoning, 'formal' if a clear rule is breached, and 'informal' if more general [PG] |
Full Idea: Fallacies are errors in reasoning, labelled as 'formal' if a clear rule has been breached, and 'informal' if some less precise error has been made. | |
From: PG (Db (ideas) [2031]) | |
A reaction: Presumably there can be a grey area between the two. |
7415 | Question-begging assumes the proposition which is being challenged [PG] |
Full Idea: To beg the question is to take for granted in your argument that very proposition which is being challenged | |
From: PG (Db (ideas) [2031]) | |
A reaction: An undoubted fallacy, and a simple failure to engage in the rational enterprise. I suppose one might give a reason for something, under the mistaken apprehension that it didn't beg the question; analysis of logical form is then needed. |
11059 | Circular arguments are formally valid, though informally inadmissible [Hanna] |
Full Idea: A circular argument - one whose conclusion is to be found among its premises - is inadmissible in most informal contexts, even though it is formally valid. | |
From: Robert Hanna (Rationality and Logic [2006], 2.1) | |
A reaction: Presumably this is a matter of conversational implicature - that you are under a conventional obligation to say things which go somewhere, rather than circling around their starting place. |
11089 | Formally, composition and division fallacies occur in mereology [Hanna] |
Full Idea: Informal fallacies of composition and division go over into formal fallacies of mereological logic. | |
From: Robert Hanna (Rationality and Logic [2006], 7.3) |
7414 | What is true of a set is also true of its members [PG] |
Full Idea: The fallacy of division is the claim that what is true of a set must therefore be true of its members. | |
From: PG (Db (ideas) [2031]) | |
A reaction: Clearly a fallacy, but if you only accept sets which are rational, then there is always a reason why a particular is a member of a set, and you can infer facts about particulars from the nature of the set |
6696 | The Ad Hominem Fallacy criticises the speaker rather than the argument [PG] |
Full Idea: The Ad Hominem Fallacy is to criticise the person proposing an argument rather than the argument itself, as when you say "You would say that", or "Your behaviour contradicts what you just said". | |
From: PG (Db (ideas) [2031]) | |
A reaction: Nietzsche is very keen on ad hominem arguments, and cheerfully insults great philosophers, but then he doesn't believe there is such a thing as 'pure argument', and he is a relativist. |
4687 | Minimal theories of truth avoid ontological commitment to such things as 'facts' or 'reality' [PG] |
Full Idea: Minimalist theories of truth are those which involve minimum ontological commitment, avoiding references to 'reality' or 'facts' or 'what works', preferring to refer to formal relationships within language. | |
From: PG (Db (ideas) [2031]) | |
A reaction: Personally I am suspicious of minimal theories, which seem to be designed by and for anti-realists. They seem too focused on language, when animals can obviously formulate correct propositions. I'm quite happy with the 'facts', even if that is vague. |
11058 | Logic is explanatorily and ontologically dependent on rational animals [Hanna] |
Full Idea: Logic is explanatorily and ontologically dependent on rational animals. | |
From: Robert Hanna (Rationality and Logic [2006], 1.6) | |
A reaction: This is a splendid defiance of the standard Fregean view of logic as having an inner validity of its own, having nothing to do with the psychology of thinkers. But if Hanna is right, why does logical consequence seem to be necessary? |
11072 | Logic is personal and variable, but it has a universal core [Hanna] |
Full Idea: Beyond an innate and thus universally share protologic, each reasoner's mental logic is only more or less similar to the mental logic of any other reasoner. | |
From: Robert Hanna (Rationality and Logic [2006], 5.7) | |
A reaction: This is the main thesis of Hanna's book. I like the combination of this idea with Stephen Read's remark that each student should work out a personal logic which has their own private endorsement. |
11061 | Intensional consequence is based on the content of the concepts [Hanna] |
Full Idea: In intensional logic the consequence relation is based on the form or content of the concepts or properties expressed by the predicates. | |
From: Robert Hanna (Rationality and Logic [2006], 2.2) |
14235 | Saying 'they can become a set' is a tautology, because reference to 'they' implies a collection [Cargile] |
Full Idea: If the rule is asserted 'Given any well-determined objects, they can be collected into a set by an application of the 'set of' operation', then on the usual account of 'they' this is a tautology. Collection comes automatically with this form of reference. | |
From: James Cargile (Paradoxes: Form and Predication [1979], p.115), quoted by Oliver,A/Smiley,T - What are Sets and What are they For? Intro | |
A reaction: Is this a problem? Given they are well-determined (presumably implying countable) there just is a set of them. That's what set theory is, I thought. Of course, the iterative view talks of 'constructing' the sets, but the construction looks unstoppable. |
6516 | Monty Hall Dilemma: do you abandon your preference after Monty eliminates one of the rivals? [PG] |
Full Idea: The Monty Hall Dilemma: Three boxes, one with a big prize; pick one to open. Monty Hall then opens one of the other two, which is empty. You may, if you wish, switch from your box to the other unopened box. Should you? | |
From: PG (Db (ideas) [2031]) | |
A reaction: The other two boxes, as a pair, are more likely contain the prize than your box. Monty Hall has eliminated one of them for you, so you should choose the other one. Your intuition that the two remaining boxes are equal is incorrect! |
11063 | Logicism struggles because there is no decent theory of analyticity [Hanna] |
Full Idea: All versions of the thesis that arithmetic is reducible to logic remain questionable as long as no good theory of analyticity is available. | |
From: Robert Hanna (Rationality and Logic [2006], 2.4) | |
A reaction: He rejects the attempts by Frege, Wittgenstein and Carnap to provide a theory of analyticity. |
11055 | Supervenience can add covariation, upward dependence, and nomological connection [Hanna] |
Full Idea: 'Strong supervenience' involves necessary covariation of the properties, and upward dependence of higher level on lower level. ...If we add a nomological connection between the two, then we have 'superdupervenience'. | |
From: Robert Hanna (Rationality and Logic [2006], 1.2) | |
A reaction: [compressed] Very helpful. A superdupervenient relationship between mind and brain would be rather baffling if they were not essentially the same thing. (which is what I take them to be). |
11083 | A sentence is necessary if it is true in a set of worlds, and nonfalse in the other worlds [Hanna] |
Full Idea: On my view, necessity is the truth of a sentence in every member of a set of possible worlds, together with its nonfalsity in every other possible worlds. | |
From: Robert Hanna (Rationality and Logic [2006], 6.6) |
11086 | Metaphysical necessity can be 'weak' (same as logical) and 'strong' (based on essences) [Hanna] |
Full Idea: Weak metaphysical necessity is either over the set of all logically possible worlds (in which case it is the same as logical necessity), or it is of a smaller set of worlds, and is determined by the underlying essence or nature of the actual world. | |
From: Robert Hanna (Rationality and Logic [2006], 6.6) | |
A reaction: I take the first to be of no interest, as I have no interest in a world which is somehow rated as logically possible, but is not naturally possible. The second type should the principle aim of all human cognitive enquiry. The strong version is synthetic. |
11084 | Logical necessity is truth in all logically possible worlds, because of laws and concepts [Hanna] |
Full Idea: Logical necessity is the truth of a sentence by virtue of logical laws or intrinsic conceptual connections alone, and thus true in all logically possible worlds. Put in traditional terms, logical necessity is analyticity. | |
From: Robert Hanna (Rationality and Logic [2006], 6.6) |
11085 | Nomological necessity is truth in all logically possible worlds with our laws [Hanna] |
Full Idea: Physical or nomological necessity is the truth of a sentence in all logically possible worlds governed by our actual laws of nature. | |
From: Robert Hanna (Rationality and Logic [2006], 6.6) | |
A reaction: Personally I think 'natural necessity' is the best label for this, as it avoids firm commitment to reductive physicalism, and it also avoids commitment to actual necessitating laws. |
24054 | Everything has a probability, something will happen, and probabilities add up [PG] |
Full Idea: The three Kolgorov axioms of probability: the probability of an event is a non-negative real number; it is certain that one of the 'elementary events' will occur; and the unity of probabilities is the sum of probability of parts ('additivity'). | |
From: PG (Db (ideas) [2031]) | |
A reaction: [My attempt to verbalise them; they are normally expressed in terms of set theory]. Got this from a talk handout, and Wikipedia. |
3875 | If reality is just what we perceive, we would have no need for a sixth sense [PG] |
Full Idea: Reality must be more than merely what we perceive, because a sixth sense would enhance our current knowledge, and a seventh, and so on. | |
From: PG (Db (ideas) [2031]) |
3876 | If my team is losing 3-1, I have synthetic a priori knowledge that they need two goals for a draw [PG] |
Full Idea: If my football team is losing 3-1, I seem to have synthetic a priori knowledge that they need two goals to achieve a draw | |
From: PG (Db (ideas) [2031]) |
11077 | Intuition includes apriority, clarity, modality, authority, fallibility and no inferences [Hanna] |
Full Idea: The nine features of intuition are: a mental act, apriority, content-comprehensiveness, clarity and distinctness, strict-modality-attributivity, authoritativeness,noninferentiality, cognitive indispensability, and fallibility. | |
From: Robert Hanna (Rationality and Logic [2006], 6.4) | |
A reaction: [See Hanna for a full explanation of this lot] Seems like a good stab at it. Note the trade-off between authority and fallibility. |
11080 | Intuition is more like memory, imagination or understanding, than like perception [Hanna] |
Full Idea: There is no reason why intuition should be cognitively analogous not to sense perception but instead to either memory, imagination, or conceptual understanding. | |
From: Robert Hanna (Rationality and Logic [2006], 6.5) | |
A reaction: It is Russell's spotting the analogy with memory that made me come to believe that a priori knowledge is possible, as long as we accept it as being fallible. [Hanna has a good discussion of intuition; he votes for the imagination analogy] |
11078 | Intuition is only outside the 'space of reasons' if all reasons are inferential [Hanna] |
Full Idea: Intuition is outside the 'space of reasons' if we assume that all reasons are inferential, but inside if we assume that reasons need not always be inferential. | |
From: Robert Hanna (Rationality and Logic [2006], 6.4) | |
A reaction: I take it that intuition can be firmly inside the space of reasons, and that not all reasons are inferential. |
11053 | Explanatory reduction is stronger than ontological reduction [Hanna] |
Full Idea: As standardly construed, reduction can be either explanatory or ontological. Explanatory reduction is the strongest sort of reduction. ...Ontological reduction can still have an 'explanatory gap'. | |
From: Robert Hanna (Rationality and Logic [2006], 1.1) |
11081 | Imagination grasps abstracta, generates images, and has its own correctness conditions [Hanna] |
Full Idea: Three features of imagination are that its objects can be abstract, that it generates spatial images directly available to introspection, and its correctness conditions are not based on either efficacious causation or effective tracking. | |
From: Robert Hanna (Rationality and Logic [2006], 6.6) | |
A reaction: Hanna makes the imagination faculty central to our grasp of his proto-logic. |
7734 | Maybe a mollusc's brain events for pain ARE of the same type (broadly) as a human's [PG] |
Full Idea: To defend type-type identity against the multiple realisability objection, we might say that a molluscs's brain events that register pain ARE of the same type as humans, given that being 'of the same type' is a fairly flexible concept. | |
From: PG (Db (ideas) [2031]) | |
A reaction: But this reduces 'of the same type' to such vagueness that it may become vacuous. You would be left with token-token identity, where the mental event is just identical to some brain event, with its 'type' being irrelevant. |
7735 | Maybe a frog's brain events for fear are functionally like ours, but not phenomenally [PG] |
Full Idea: To defend type-type identity against the multiple realisability objection, we might (also) say that while a frog's brain events for fear are functionally identical to a human's (it runs away), that doesn't mean they are phenomenally identical. | |
From: PG (Db (ideas) [2031]) | |
A reaction: I take this to be the key reply to the multiple realisability problem. If a frog flees from a loud noise, it is 'frightened' in a functional sense, but that still leaves the question 'What's it like to be a frightened frog?', which may differ from humans. |
11082 | Should we take the 'depictivist' or the 'descriptivist/propositionalist' view of mental imagery? [Hanna] |
Full Idea: In the debate in cognitive science on the nature of mental imagery, there is a 'depictivist' side (Johnson-Laird, Kosslyn, Shepard - good images are isomorphic), and a 'descriptivist' or 'propositionalist' side (Pylyshyn and others). | |
From: Robert Hanna (Rationality and Logic [2006], 6.6) | |
A reaction: Hanna votes firmly in favour of the first view, and implies that they have more or less won the debate. |
11047 | Hegelian holistic rationality is the capacity to seek coherence [Hanna] |
Full Idea: The 'holistic' (Hegelian) sense of rationality means the capacity for systematically seeking coherence (or 'reflective equilibrium') across a network or web of beliefs, desires, emotions, intentions and volitions. Traditionally 'the truth is the whole'. | |
From: Robert Hanna (Rationality and Logic [2006], Intro) | |
A reaction: On the whole this is my preferred view (which sounds Quinean as well as Hegelian), though I reject the notion that truth is a whole. I take coherence to be the hallmark of justification, though not of truth, and reason aims to justify. |
11048 | Humean Instrumental rationality is the capacity to seek contingent truths [Hanna] |
Full Idea: The 'instrumental' (Humean) sense of rationality means a capacity for generating or recognizing contingent truths, contextually normative rules, consequentialist obligations, and hypothetical 'ought' claims. Reason is 'the slave of the passions'. | |
From: Robert Hanna (Rationality and Logic [2006], Intro) |
11046 | Kantian principled rationality is recognition of a priori universal truths [Hanna] |
Full Idea: The 'principled' (Kantian) sense of rationality means the possession of a capacity for generating or recognizing necessary truths, a priori beliefs, strictly universal normative rules, nonconsequentialist moral obligations, and categorical 'ought' claims. | |
From: Robert Hanna (Rationality and Logic [2006], Intro) |
11067 | Rational animals have a normative concept of necessity [Hanna] |
Full Idea: A rational animal is one that is a normative-reflective possessor of the concepts of necessity, certainty and unconditional obligation. | |
From: Robert Hanna (Rationality and Logic [2006], 4.0) | |
A reaction: The addition of obligation shows the Kantian roots of this. It isn't enough just to possess a few concepts. You wouldn't count as rational if you didn't desire truth, as well as understanding it. Robots be warned. |
11068 | One tradition says talking is the essence of rationality; the other says the essence is logic [Hanna] |
Full Idea: In the tradition of Descartes, Chomsky and Davidson, rational animals are essentially talking animals. But in the view of Kant, and perhaps Fodor, it is the cognitive capacity for logic that is the essence of human rationality. | |
From: Robert Hanna (Rationality and Logic [2006], 4.9) |
11045 | Most psychologists are now cognitivists [Hanna] |
Full Idea: Most psychologists have now dropped behaviourism and adopted cognitivism: the thesis that the rational human mind is essentially an active innately specified information-processor. | |
From: Robert Hanna (Rationality and Logic [2006], Intro) |
3877 | Utilitarianism seems to justify the discreet murder of unhappy people [PG] |
Full Idea: If I discreetly murdered a gloomy and solitary tramp who was upsetting people in my village, if is hard to see how utilitarianism could demonstrate that I had done something wrong. | |
From: PG (Db (ideas) [2031]) |
6126 | Life is Movement, Respiration, Sensation, Nutrition, Excretion, Reproduction, Growth (MRS NERG) [PG] |
Full Idea: The biologists' acronym for the necessary conditions of life is MRS NERG: that is, Movement, Respiration, Sensation, Nutrition, Excretion, Reproduction, Growth. | |
From: PG (Db (ideas) [2031]) | |
A reaction: How strictly necessary are each of these is a point for discussion. A notorious problem case is fire, which (at a stretch) may pass all seven tests. |
3873 | An omniscient being couldn't know it was omniscient, as that requires information from beyond its scope of knowledge [PG] |
Full Idea: God seems to be in the paradoxical situation that He may be omniscient, but can never know that He is, because that involves knowing that there is nothing outside his scope of knowledge (e.g. another God) | |
From: PG (Db (ideas) [2031]) |
3874 | How could God know there wasn't an unknown force controlling his 'free' will? [PG] |
Full Idea: How could God be certain that he has free will (if He has), if He couldn't be sure that there wasn't an unknown force controlling his will? | |
From: PG (Db (ideas) [2031]) |