152 ideas
2136 | Philosophers become as divine and orderly as possible, by studying divinity and order [Plato] |
23767 | The winds of the discussion should decide its destination [Plato] |
23682 | It would be absurd to be precise about the small things, but only vague about the big things [Plato] |
21267 | Supposing many principles is superfluous if a few will do it [Aquinas] |
2151 | Dialectic is the only method of inquiry which uproots the things which it takes for granted [Plato] |
2154 | The ability to take an overview is the distinguishing mark of a dialectician [Plato] |
4011 | For Plato, rationality is a vision of and love of a cosmic rational order [Plato, by Taylor,C] |
2093 | You must never go against what you actually believe [Plato] |
2130 | People often merely practice eristic instead of dialectic, because they don't analyse the subject-matter [Plato] |
23176 | Truth is universal, but knowledge of it is not [Aquinas] |
20621 | Types of lying: Speak lies, intend lies, intend deception, aim at deceptive goal? [Aquinas, by Tuckness/Wolf] |
21248 | If the existence of truth is denied, the 'Truth does not exist' must be true! [Aquinas] |
10355 | Facts can't make claims true, because they are true claims [Brandom, by Kusch] |
2145 | In mathematics certain things have to be accepted without further explanation [Plato] |
23173 | If a syllogism admits one absurdity, others must follow [Aquinas] |
8726 | Geometry can lead the mind upwards to truth and philosophy [Plato] |
9863 | We aim for elevated discussion of pure numbers, not attaching them to physical objects [Plato] |
9864 | In pure numbers, all ones are equal, with no internal parts [Plato] |
8727 | Geometry is not an activity, but the study of unchanging knowledge [Plato] |
9861 | The same thing is both one and an unlimited number at the same time [Plato] |
9862 | To become rational, philosophers must rise from becoming into being [Plato] |
21818 | Being depends on the Good, which is not itself being, but superior to being [Plato] |
15812 | Being implies distinctness, which implies division, unity, and multitude [Aquinas] |
2061 | The best things (gods, healthy bodies, good souls) are least liable to change [Plato] |
6562 | Plato's reality has unchanging Parmenidean forms, and Heraclitean flux [Plato, by Fogelin] |
21268 | Non-human things are explicable naturally, and voluntary things by the will, so God is not needed [Aquinas] |
2142 | The plurality of beautiful things must belong to a single class, because they have a single particular character [Plato] |
5094 | Plato's Forms are said to have no location in space [Plato, by Aristotle] |
12043 | Forms are not universals, as they don't cover every general term [Plato, by Annas] |
2159 | Craftsmen making furniture refer to the form, but no one manufactures the form of furniture [Plato] |
17 | A Form applies to a set of particular things with the same name [Plato] |
12122 | Plato mistakenly thought forms were totally abstracted away from matter [Bacon on Plato] |
5574 | Plato's Forms not only do not come from the senses, but they are beyond possibility of sensing [Plato, by Kant] |
16765 | Humans only have a single substantial form, which contains the others and acts for them [Aquinas] |
2133 | Knowledge must be of the permanent unchanging nature of things [Plato] |
23175 | The conclusions of speculative reason about necessities are certain [Aquinas] |
21337 | A knowing being possesses a further reality, the 'presence' of the thing known [Aquinas] |
21249 | Some things are self-evident to us; others are only self-evident in themselves [Aquinas] |
21250 | A proposition is self-evident if the predicate is included in the essence of the subject [Aquinas] |
20224 | Sensation prepares the way for intellectual knowledge, which needs the virtues of reason [Aquinas] |
2162 | If theory and practice conflict, the best part of the mind accepts theory, so the other part is of lower grade [Plato] |
2140 | True belief without knowledge is like blind people on the right road [Plato] |
2096 | Is the function of the mind management, authority and planning - or is it one's whole way of life? [Plato] |
6009 | Psychic conflict is clear if appetite is close to the body and reason fairly separate [Plato, by Modrak] |
6041 | There is a third element to the mind - spirit - lying between reason and appetite [Plato] |
2127 | The mind has parts, because we have inner conflicts [Plato] |
1737 | The soul seems to have an infinity of parts [Aristotle on Plato] |
22107 | Sensations are transmitted to 'internal senses' in the brain, chiefly to 'phantasia' and 'imagination' [Aquinas, by Kretzmann/Stump] |
9098 | Mental activity combines what we sense with imagination of what is not present [Aquinas] |
9092 | Abstracting A from B generates truth, as long as the connection is not denied [Aquinas] |
9093 | We understand the general nature of things by ignoring individual peculiarities [Aquinas] |
9097 | The mind abstracts generalities from images, but also uses images for understanding [Aquinas] |
9095 | Very general ideas (being, oneness, potentiality) can be abstracted from thought matter in general [Aquinas] |
9099 | Particular instances come first, and (pace Plato) generalisations are abstracted from them [Aquinas] |
10508 | Species are abstracted from appearances by ignoring individual conditions [Aquinas] |
22111 | Aquinas attributes freedom to decisions and judgements, and not to the will alone [Aquinas, by Kretzmann/Stump] |
22105 | The human intellectual soul is an incorporeal, subsistent principle [Aquinas] |
22108 | First grasp what it is, then its essential features; judgement is their compounding and division [Aquinas] |
10503 | We abstract forms from appearances, and acquire knowledge of immaterial things [Aquinas] |
10509 | Understanding consists entirely of grasping abstracted species [Aquinas] |
10506 | Mathematics can be abstracted from sensible matter, and from individual intelligible matter [Aquinas] |
9094 | Mathematical objects abstract both from perceived matter, and from particular substance [Aquinas] |
10505 | We can just think of an apple's colour, because the apple is not part of the colour's nature [Aquinas] |
10504 | Abstracting either treats something as separate, or thinks of it separately [Aquinas] |
10507 | Numbers and shapes are abstracted by ignoring their sensible qualities [Aquinas] |
9096 | The mind must produce by its own power an image of the individual species [Aquinas] |
5945 | The 'Republic' is a great work of rhetorical theory [Lawson-Tancred on Plato] |
23316 | For Plato and Aristotle there is no will; there is only rational desire for what is seen as good [Plato, by Frede,M] |
23180 | The will is the rational appetite [Aquinas] |
16 | We avoid evil either through a natural aversion, or because we have acquired knowledge [Plato] |
16565 | Without the surface decoration, poetry shows only appearances and nothing of what is real [Plato] |
2160 | Representation is two steps removed from the truth [Plato] |
2163 | Artists should be excluded from a law-abiding community, because they destroy the rational mind [Plato] |
2135 | Truth is closely related to proportion [Plato] |
2141 | I suggest that we forget about trying to define goodness itself for the time being [Plato] |
1869 | The good cannot be expressed in words, but imprints itself upon the soul [Plato, by Celsus] |
22112 | For humans good is accordance with reason, and bad is contrary to reason [Aquinas] |
4115 | Plato found that he could only enforce rational moral justification by creating an authoritarian society [Williams,B on Plato] |
4547 | Plato measured the degree of reality by the degree of value [Nietzsche on Plato] |
22494 | We must know the end, know that it is the end, and know how to attain it [Aquinas] |
2094 | A thing's function is what it alone can do, or what it does better than other things [Plato] |
2095 | If something has a function then it has a state of being good [Plato] |
2129 | Goodness is mental health, badness is mental sickness [Plato] |
12 | If we were invisible, would the just man become like the unjust? [Plato] |
2168 | Clever criminals do well at first, but not in the long run [Plato] |
2137 | The main aim is to understand goodness, which gives everything its value and advantage [Plato] |
2139 | Every person, and every activity, aims at the good [Plato] |
2143 | Good has the same role in the world of knowledge as the sun has in the physical world [Plato] |
2147 | The sight of goodness leads to all that is fine and true and right [Plato] |
4007 | For Plato we abandon honour and pleasure once we see the Good [Plato, by Taylor,C] |
2144 | Goodness makes truth and knowledge possible [Plato] |
2164 | Bad is always destructive, where good preserves and benefits [Plato] |
2138 | Pleasure is commonly thought to be the good, though the more ingenious prefer knowledge [Plato] |
2070 | Even people who think pleasure is the good admit that there are bad pleasures [Plato] |
2157 | Nice smells are intensive, have no preceding pain, and no bad after-effect [Plato] |
2134 | Philosophers are concerned with totally non-physical pleasures [Plato] |
2156 | There are three types of pleasure, for reason, for spirit and for appetite [Plato] |
2158 | Pleasure-seekers desperately seek illusory satisfaction, like filling a leaky vessel [Plato] |
2123 | Excessive pleasure deranges people, making the other virtues impossible [Plato] |
2166 | We should behave well even if invisible, for the health of the mind [Plato] |
2097 | Isn't it better to have a reputation for goodness than to actually be good? [Plato] |
19946 | Morality is a compromise, showing restraint, to avoid suffering wrong without compensation [Plato] |
5 | Justice is merely the interests of the stronger party [Plato] |
7 | Surely you don't return a borrowed weapon to a mad friend? [Plato] |
8 | Is right just the interests of the powerful? [Plato] |
15 | Sin first, then sacrifice to the gods from the proceeds [Plato] |
23181 | All acts of virtue relate to justice, which is directed towards the common good [Aquinas] |
5944 | For Plato, virtue is its own reward [Lawson-Tancred on Plato] |
8009 | Aquinas wanted, not to escape desire, but to transform it for moral ends [Aquinas, by MacIntyre] |
23182 | Legal justice is supreme, because it directs the other virtues to the common good [Aquinas] |
2155 | True goodness requires mental unity and harmony [Plato] |
2126 | A good community necessarily has wisdom, courage, self-discipline and morality [Plato] |
22399 | Temperance prevents our passions from acting against reason [Aquinas] |
23562 | If the parts of our soul do their correct work, we will be just people, and will act justly [Plato] |
23177 | Justice directs our relations with others, because it denotes a kind of equality [Aquinas] |
2092 | Simonides said morality is helping one's friends and harming one's enemies [Plato] |
19889 | People need society because the individual has too many needs [Plato] |
19890 | All exchanges in a community are for mutual benefit [Plato] |
10 | After a taste of mutual harm, men make a legal contract to avoid it [Plato] |
23561 | People doing their jobs properly is the fourth cardinal virtue for a city [Plato] |
2149 | Reluctant rulers make a better and more unified administration [Plato] |
2132 | Only rule by philosophers of integrity can keep a community healthy [Plato] |
2131 | Is there anything better for a community than to produce excellent people? [Plato] |
23179 | People differ in their social degrees, and a particular type of right applies to each [Aquinas] |
23174 | Natural law is a rational creature's participation in eternal law [Aquinas] |
22113 | Right and wrong actions pertain to natural law, as perceived by practical reason [Aquinas] |
22114 | Tyrannical laws are irrational, and so not really laws [Aquinas] |
7291 | For Aquinas a war must be in a just cause, have proper authority, and aim at good [Aquinas, by Grayling] |
2148 | To gain knowledge, turn away from the world of change, and focus on true goodness [Plato] |
2152 | Dialectic is the highest and most important part of the curriculum [Plato] |
2153 | Compulsory intellectual work never remains in the mind [Plato] |
5508 | Aquinas says a fertilized egg is not human, and has no immortal soul [Aquinas, by Martin/Barresi] |
16687 | Bodies are three-dimensional substances [Aquinas] |
2630 | If Plato's God is immaterial, he will lack consciousness, wisdom, pleasure and movement, which are essential to him [Cicero on Plato] |
23178 | Divine law commands some things because they are good, while others are good because commanded [Aquinas] |
21251 | We can't know God's essence, so his existence can't be self-evident for us [Aquinas] |
5614 | If you assume that there must be a necessary being, you can't say which being has this quality [Kant on Aquinas] |
21269 | Way 1: the infinite chain of potential-to-actual movement has to have a first mover [Aquinas] |
21270 | Way 2: no effect without a cause, and this cannot go back to infinity, so there is First Cause [Aquinas] |
21271 | Way 3: contingent beings eventually vanish, so continuity needs a necessary being [Aquinas] |
21272 | Way 4: the source of all qualities is their maximum, so something (God) causes all perfections [Aquinas] |
21273 | Way 5: mindless things act towards an obvious end, so there is an intelligent director [Aquinas] |
14 | If the gods are non-existent or indifferent, why bother to deceive them? [Plato] |
20211 | Life aims at the Beatific Vision - of perfect happiness, and revealed truth [Aquinas, by Zagzebski] |
22106 | Aquinas saw angels as separated forms, rather than as made of 'spiritual matter' [Aquinas, by Kretzmann/Stump] |
23306 | Humans have a non-physical faculty of reason, so they can be immortal [Aquinas, by Sorabji] |
2165 | Something is unlikely to be immortal if it is imperfectly made from diverse parts [Plato] |
4412 | Those in bliss have their happiness increased by seeing the damned punished [Aquinas] |
13 | Is the supreme reward for virtue to be drunk for eternity? [Plato] |
21266 | God does not exist, because He is infinite and good, and so no evil should be discoverable [Aquinas] |
21274 | It is part of God's supreme goodness that He brings good even out of evil [Aquinas] |
2120 | God is responsible for the good things, but we must look elsewhere for the cause of the bad things [Plato] |