Combining Philosophers

All the ideas for Antiphon, Plato and John Locke

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747 ideas

1. Philosophy / A. Wisdom / 1. Nature of Wisdom
Spiritual qualities only become advantageous with the growth of wisdom [Plato]
The finest branch of wisdom is justice and moderation in ordering states and families [Plato]
Wisdom makes virtue and true goodness possible [Plato]
Wisdom is called 'beautiful', because it performs fine works [Plato]
For Plato true wisdom is supernatural [Plato, by Weil]
1. Philosophy / A. Wisdom / 2. Wise People
Good people are no different from wise ones [Plato]
Philosophers become as divine and orderly as possible, by studying divinity and order [Plato]
1. Philosophy / A. Wisdom / 3. Wisdom Deflated
Don't assume that wisdom is the automatic consequence of old age [Plato]
1. Philosophy / C. History of Philosophy / 2. Ancient Philosophy / b. Pre-Socratic philosophy
Plato never mentions Democritus, and wished to burn his books [Plato, by Diog. Laertius]
1. Philosophy / D. Nature of Philosophy / 1. Philosophy
Can we understand an individual soul without knowing the soul in general? [Plato]
For relaxation one can consider the world of change, instead of eternal things [Plato]
1. Philosophy / D. Nature of Philosophy / 2. Invocation to Philosophy
The highest ability in man is the ability to discuss unity and plurality in the nature of things [Plato]
We must fight fiercely for knowledge, understanding and intelligence [Plato]
Philosophy is the supreme gift of the gods to mortals [Plato]
1. Philosophy / D. Nature of Philosophy / 5. Aims of Philosophy / b. Philosophy as transcendent
Philosophy is a purification of the soul ready for the afterlife [Plato]
1. Philosophy / D. Nature of Philosophy / 5. Aims of Philosophy / e. Philosophy as reason
The winds of the discussion should decide its destination [Plato]
We shouldn't always follow where the argument leads! [Lewis on Plato]
1. Philosophy / D. Nature of Philosophy / 7. Despair over Philosophy
Is a gifted philosopher unmanly if he avoids the strife of the communal world? [Plato]
Philosophers are always switching direction to something more interesting [Plato]
1. Philosophy / E. Nature of Metaphysics / 1. Nature of Metaphysics
Maybe analysis seeks the 'nominal essence', and metaphysics seeks the 'real essence' [Locke, by Mumford]
1. Philosophy / E. Nature of Metaphysics / 4. Metaphysics as Science
I am just an under-labourer, clearing the ground in preparation for knowledge [Locke]
1. Philosophy / F. Analytic Philosophy / 2. Analysis by Division
Understanding mainly involves knowing the elements, not their combinations [Plato]
A speaker should be able to divide a subject, right down to the limits of divisibility [Plato]
Whenever you perceive a community of things, you should also hunt out differences in the group [Plato]
Either a syllable is its letters (making parts as knowable as whole) or it isn't (meaning it has no parts) [Plato]
1. Philosophy / F. Analytic Philosophy / 4. Conceptual Analysis
It would be absurd to be precise about the small things, but only vague about the big things [Plato]
1. Philosophy / F. Analytic Philosophy / 7. Limitations of Analysis
The desire to split everything into its parts is unpleasant and unphilosophical [Plato]
2. Reason / A. Nature of Reason / 1. On Reason
It is foolish to quarrel with the mind's own reasoning processes [Plato]
When questions are doubtful we should concentrate not on objects but on ideas of the intellect [Plato]
2. Reason / A. Nature of Reason / 3. Pure Reason
In investigation the body leads us astray, but the soul gets a clear view of the facts [Plato]
2. Reason / A. Nature of Reason / 4. Aims of Reason
We ought to follow where the argument leads us [Plato]
2. Reason / A. Nature of Reason / 6. Coherence
A rational account is essentially a weaving together of things with names [Plato]
2. Reason / A. Nature of Reason / 7. Status of Reason
The greatest misfortune for a person is to develop a dislike for argument [Plato]
Opposition to reason is mad [Locke]
2. Reason / A. Nature of Reason / 9. Limits of Reason
Mortals are incapable of being fully rational [Plato]
2. Reason / B. Laws of Thought / 2. Sufficient Reason
Nothing can come to be without a cause [Plato]
2. Reason / B. Laws of Thought / 4. Contraries
Only one thing can be contrary to something [Plato]
2. Reason / B. Laws of Thought / 5. Opposites
Opposites are as unlike as possible [Plato]
2. Reason / C. Styles of Reason / 1. Dialectic
A dialectician is someone who knows how to ask and to answer questions [Plato]
Two contradictories force us to find a relation which will correlate them [Plato, by Weil]
Dialectic is the only method of inquiry which uproots the things which it takes for granted [Plato]
The ability to take an overview is the distinguishing mark of a dialectician [Plato]
For Plato, rationality is a vision of and love of a cosmic rational order [Plato, by Taylor,C]
Good analysis involves dividing things into appropriate forms without confusion [Plato]
Plato's 'Parmenides' is the greatest artistic achievement of the ancient dialectic [Hegel on Plato]
Dialectic should only be taught to those who already philosophise well [Plato]
2. Reason / C. Styles of Reason / 2. Elenchus
In "Gorgias" Socrates is confident that his 'elenchus' will decide moral truth [Vlastos on Plato]
We should test one another, by asking and answering questions [Plato]
You must never go against what you actually believe [Plato]
In discussion a person's opinions are shown to be in conflict, leading to calm self-criticism [Plato]
2. Reason / C. Styles of Reason / 3. Eristic
People often merely practice eristic instead of dialectic, because they don't analyse the subject-matter [Plato]
Eristic discussion is aggressive, but dialectic aims to help one's companions in discussion [Plato]
2. Reason / D. Definition / 2. Aims of Definition
To reveal a nature, divide down, and strip away what it has in common with other things [Plato]
No one wants to define 'weaving' just for the sake of weaving [Plato]
2. Reason / D. Definition / 4. Real Definition
A primary element has only a name, and no logos, but complexes have an account, by weaving the names [Plato]
2. Reason / D. Definition / 5. Genus and Differentia
Genus is a partial conception of species, and species a partial idea of individuals [Locke]
2. Reason / D. Definition / 6. Definition by Essence
Maybe Locke described the real essence of a person [Locke, by Pasnau]
2. Reason / F. Fallacies / 7. Ad Hominem
Ad Hominem: press a man with the consequences of his own principle [Locke]
2. Reason / F. Fallacies / 8. Category Mistake / a. Category mistakes
Asking whether man's will is free is liking asking if sleep is fast or virtue is square [Locke]
3. Truth / A. Truth Problems / 3. Value of Truth
Truth has the supreme value, for both gods and men [Plato]
Nothing is so beautiful to the eye as truth is to the mind [Locke]
3. Truth / A. Truth Problems / 5. Truth Bearers
Truth only belongs to mental or verbal propositions [Locke]
It is propositions which are true or false, though it is sometimes said of ideas [Locke]
If they refer to real substances, 'man' is a true idea and 'centaur' a false one [Locke]
3. Truth / C. Correspondence Truth / 1. Correspondence Truth
Truths say of what is that it is, falsehoods say of what is that it is not [Plato]
4. Formal Logic / A. Syllogistic Logic / 2. Syllogistic Logic
Syllogisms are verbal fencing, not discovery [Locke]
Many people can reason well, yet can't make a syllogism [Locke]
4. Formal Logic / B. Propositional Logic PL / 2. Tools of Propositional Logic / e. Axioms of PL
In mathematics certain things have to be accepted without further explanation [Plato]
4. Formal Logic / G. Formal Mereology / 1. Mereology
It seems absurd that seeing a person's limbs, the one is many, and yet the many are one [Plato]
5. Theory of Logic / C. Ontology of Logic / 3. If-Thenism
Mathematical proofs work, irrespective of whether the objects exist [Locke]
5. Theory of Logic / F. Referring in Logic / 1. Naming / a. Names
A name is a sort of tool [Plato]
A name-giver might misname something, then force other names to conform to it [Plato]
Things must be known before they are named, so it can't be the names that give us knowledge [Plato]
5. Theory of Logic / F. Referring in Logic / 1. Naming / c. Names as referential
Anyone who knows a thing's name also knows the thing [Plato]
5. Theory of Logic / L. Paradox / 2. Aporiai
How can you seek knowledge of something if you don't know it? [Plato]
5. Theory of Logic / L. Paradox / 3. Antinomies
Plato found antinomies in ideas, Kant in space and time, and Bradley in relations [Plato, by Ryle]
Plato's 'Parmenides' is perhaps the best collection of antinomies ever made [Russell on Plato]
6. Mathematics / A. Nature of Mathematics / 2. Geometry
Geometry can lead the mind upwards to truth and philosophy [Plato]
It is absurd to define a circle, but not be able to recognise a real one [Plato]
6. Mathematics / A. Nature of Mathematics / 3. Nature of Numbers / m. One
The idea of 'one' is the simplest, most obvious and most widespread idea [Locke]
6. Mathematics / A. Nature of Mathematics / 4. Using Numbers / f. Arithmetic
If you add one to one, which one becomes two, or do they both become two? [Plato]
Daily arithmetic counts unequal things, but pure arithmetic equalises them [Plato]
6. Mathematics / A. Nature of Mathematics / 5. The Infinite / d. Actual infinite
If there were real infinities, you could add two together, which is ridiculous [Locke]
6. Mathematics / C. Sources of Mathematics / 1. Mathematical Platonism / a. For mathematical platonism
We aim for elevated discussion of pure numbers, not attaching them to physical objects [Plato]
In pure numbers, all ones are equal, with no internal parts [Plato]
Geometry is not an activity, but the study of unchanging knowledge [Plato]
We master arithmetic by knowing all the numbers in our soul [Plato]
One is, so numbers exist, so endless numbers exist, and each one must partake of being [Plato]
6. Mathematics / C. Sources of Mathematics / 1. Mathematical Platonism / b. Against mathematical platonism
Mathematics is just about ideas, so whether circles exist is irrelevant [Locke]
6. Mathematics / C. Sources of Mathematics / 4. Mathematical Empiricism / a. Mathematical empiricism
Every simple idea we ever have brings the idea of unity along with it [Locke]
6. Mathematics / C. Sources of Mathematics / 4. Mathematical Empiricism / c. Against mathematical empiricism
The same thing is both one and an unlimited number at the same time [Plato]
7. Existence / A. Nature of Existence / 3. Being / c. Becoming
The one was and is and will be and was becoming and is becoming and will become [Plato]
Before the existence of the world there must have been being, space and becoming [Plato]
The apprehensions of reason remain unchanging, but reasonless sensation shows mere becoming [Plato]
To become rational, philosophers must rise from becoming into being [Plato]
7. Existence / A. Nature of Existence / 3. Being / d. Non-being
What does 'that which is not' refer to? [Plato]
7. Existence / A. Nature of Existence / 3. Being / e. Being and nothing
If statements about non-existence are logically puzzling, so are statements about existence [Plato]
7. Existence / A. Nature of Existence / 3. Being / f. Primary being
Being depends on the Good, which is not itself being, but superior to being [Plato]
Plato's Parmenides has a three-part theory, of Primal One, a One-Many, and a One-and-Many [Plato, by Plotinus]
7. Existence / A. Nature of Existence / 4. Abstract Existence
General and universal are not real entities, but useful inventions of the mind, concerning words or ideas [Locke]
7. Existence / A. Nature of Existence / 6. Criterion for Existence
Existences can only be known by experience [Locke]
To be is to have a capacity, to act on other things, or to receive actions [Plato]
7. Existence / B. Change in Existence / 1. Nature of Change
The best things (gods, healthy bodies, good souls) are least liable to change [Plato]
There seem to be two sorts of change: alteration and motion [Plato]
How can beauty have identity if it changes? [Plato]
7. Existence / C. Structure of Existence / 6. Fundamentals / d. Logical atoms
Comparisons boil down to simple elements of sensation or reflection [Locke]
7. Existence / C. Structure of Existence / 8. Stuff / b. Mixtures
If a mixture does not contain measure and proportion, it is corrupted and destroyed [Plato]
Any mixture which lacks measure and proportion doesn't even count as a mixture at all [Plato]
7. Existence / D. Theories of Reality / 2. Realism
Reasoning needs to cut nature accurately at the joints [Plato]
God assures me of the existence of external things [Locke]
7. Existence / D. Theories of Reality / 3. Reality
Absolute ideas, such as the Good and the Beautiful, cannot be known by us [Plato]
Plato's reality has unchanging Parmenidean forms, and Heraclitean flux [Plato, by Fogelin]
7. Existence / D. Theories of Reality / 6. Physicalism
Some alarming thinkers think that only things which you can touch exist [Plato]
7. Existence / D. Theories of Reality / 10. Vagueness / c. Vagueness as ignorance
Obscure simple ideas result from poor senses, brief impressions, or poor memory [Locke]
Ideas are uncertain when they are unnamed, because too close to other ideas [Locke]
7. Existence / D. Theories of Reality / 11. Ontological Commitment / a. Ontological commitment
Whenever there's speech it has to be about something [Plato]
7. Existence / E. Categories / 2. Categorisation
We only succeed in cutting if we use appropriate tools, not if we approach it randomly [Plato]
I revere anyone who can discern a single thing that encompasses many things [Plato]
We can't categorise things by their real essences, because these are unknown [Locke]
If we discovered real essences, we would still categorise things by the external appearance [Locke]
7. Existence / E. Categories / 5. Category Anti-Realism
There are no gaps in the continuum of nature, and everything has something closely resembling it [Locke]
8. Modes of Existence / A. Relations / 2. Internal Relations
If Simmias is taller than Socrates, that isn't a feature that is just in Simmias [Plato]
8. Modes of Existence / A. Relations / 3. Structural Relations
Plato's idea of 'structure' tends to be mathematically expressed [Plato, by Koslicki]
8. Modes of Existence / C. Powers and Dispositions / 1. Powers
We get the idea of power from our own actions, and the interaction of external bodies [Locke]
Power is active or passive, and has a relation to actions [Locke]
We can only know a thing's powers when we have combined it with many things [Locke]
8. Modes of Existence / C. Powers and Dispositions / 3. Powers as Derived
The essence of whiteness in a man is nothing but the power to produce the idea of whiteness [Locke]
8. Modes of Existence / C. Powers and Dispositions / 4. Powers as Essence
What is the texture - the real essence - which makes substances behave in distinct ways? [Locke]
8. Modes of Existence / C. Powers and Dispositions / 7. Against Powers
Locke explains powers, but effectively eliminates them with his talk of internal structure [Locke, by Alexander,P]
8. Modes of Existence / D. Universals / 1. Universals
Locke, Berkeley and Hume did no serious thinking about universals [Robinson,H on Locke]
8. Modes of Existence / D. Universals / 2. Need for Universals
If you deny that each thing always stays the same, you destroy the possibility of discussion [Plato]
The plurality of beautiful things must belong to a single class, because they have a single particular character [Plato]
It takes a person to understand, by using universals, and by using reason to create a unity out of sense-impressions [Plato]
You must always mean the same thing when you utter the same name [Plato]
8. Modes of Existence / D. Universals / 6. Platonic Forms / a. Platonic Forms
Diotima said the Forms are the objects of desire in philosophical discourse [Plato, by Roochnik]
When Diogenes said he could only see objects but not their forms, Plato said it was because he had eyes but no intellect [Plato, by Diog. Laertius]
Craftsmen making furniture refer to the form, but no one manufactures the form of furniture [Plato]
It would be absurd to think there were abstract Forms for vile things like hair, mud and dirt [Plato]
The concept of a master includes the concept of a slave [Plato]
We must have a prior knowledge of equality, if we see 'equal' things and realise they fall short of it [Plato]
Plato's Forms meant that the sophists only taught the appearance of wisdom and virtue [Plato, by Nehamas]
Good thinkers spot forms spread through things, or included within some larger form [Plato]
The not-beautiful is part of the beautiful, though opposed to it, and is just as real [Plato]
Plato's Forms were seen as part of physics, rather than of metaphysics [Plato, by Annas]
Something will always be well-made if the maker keeps in mind the eternal underlying pattern [Plato]
In addition to the underlying unchanging model and a changing copy of it, there must also be a foundation of all change [Plato]
For knowledge and true opinion to be different there must be Forms; otherwise we are just stuck with sensations [Plato]
Plato's Forms are said to have no location in space [Plato, by Aristotle]
We would have an overpowering love of knowledge if we had a pure idea of it - as with the other Forms [Plato]
If admirable things have Forms, maybe everything else does as well [Plato]
If absolute ideas existed in us, they would cease to be absolute [Plato]
Greatness and smallness must exist, to be opposed to one another, and come into being in things [Plato]
Platonists argue for the indivisible triangle-in-itself [Plato, by Aristotle]
Forms are not universals, as they don't cover every general term [Plato, by Annas]
Plato moves from Forms to a theory of genera and principles in his later work [Plato, by Frede,M]
8. Modes of Existence / D. Universals / 6. Platonic Forms / b. Partaking
The universe is basically an intelligible and unchanging model, and a visible and changing copy of it [Plato]
If the good is one, is it unchanged when it is in particulars, and is it then separated from itself? [Plato]
There is only one source for all beauty [Plato]
Other things are named after the Forms because they participate in them [Plato]
Beautiful things must be different from beauty itself, but beauty itself must be present in each of them [Plato]
If there is one Form for both the Form and its participants, they must have something in common [Aristotle on Plato]
If things partake of ideas, this implies either that everything thinks, or that everything actually is thought [Plato]
The whole idea of each Form must be found in each thing which participates in it [Plato]
Participation is not by means of similarity, so we are looking for some other method of participation [Plato]
A Form applies to a set of particular things with the same name [Plato]
Each idea is in all its participants at once, just as daytime is a unity but in many separate places at once [Plato]
If things are made alike by participating in something, that thing will be the absolute idea [Plato]
8. Modes of Existence / D. Universals / 6. Platonic Forms / c. Self-predication
Nothing can be like an absolute idea, because a third idea intervenes to make them alike (leading to a regress) [Plato]
If asked whether justice itself is just or unjust, you would have to say that it is just [Plato]
If gods are like men, they are just eternal men; similarly, Forms must differ from particulars [Aristotle on Plato]
If absolute greatness and great things are seen as the same, another thing appears which makes them seem great [Plato]
8. Modes of Existence / D. Universals / 6. Platonic Forms / d. Forms critiques
Plato mistakenly thought forms were totally abstracted away from matter [Bacon on Plato]
Plato's Forms not only do not come from the senses, but they are beyond possibility of sensing [Plato, by Kant]
The Forms cannot be changeless if they are in changing things [Aristotle on Plato]
A Form is a cause of things only in the way that white mixed with white is a cause [Aristotle on Plato]
8. Modes of Existence / E. Nominalism / 1. Nominalism / b. Nominalism about universals
All things that exist are particulars [Locke]
Universals do not exist, but are useful inventions of the mind, involving words or ideas [Locke]
9. Objects / A. Existence of Objects / 1. Physical Objects
Bodies distinctively have cohesion of parts, and power to communicate motion [Locke]
9. Objects / A. Existence of Objects / 2. Abstract Objects / a. Nature of abstracta
The greatest discovery in human thought is Plato's discovery of abstract objects [Brown,JR on Plato]
9. Objects / A. Existence of Objects / 5. Individuation / a. Individuation
We can grasp whole things in science, because they have a mathematics and a teleology [Plato, by Koslicki]
Viewing an object at an instant, we perceive identity when we see it must be that thing and not another [Locke]
Living things retain identity through change, by a principle of organisation [Locke]
9. Objects / A. Existence of Objects / 5. Individuation / c. Individuation by location
A thing is individuated just by existing at a time and place [Locke]
Obviously two bodies cannot be in the same place [Locke]
9. Objects / A. Existence of Objects / 5. Individuation / d. Individuation by haecceity
Doesn't each thing have an essence, just as it has other qualities? [Plato]
9. Objects / A. Existence of Objects / 5. Individuation / e. Individuation by kind
I speak of a 'sortal' name, from the word 'sort' [Locke]
9. Objects / A. Existence of Objects / 6. Nihilism about Objects
If we see everything as separate, we can then give no account of it [Plato]
9. Objects / B. Unity of Objects / 1. Unifying an Object / a. Intrinsic unification
Plato sees an object's structure as expressible in mathematics [Plato, by Koslicki]
Plato was less concerned than Aristotle with the source of unity in a complex object [Plato, by Koslicki]
9. Objects / B. Unity of Objects / 1. Unifying an Object / b. Unifying aggregates
Parts must belong to a created thing with a distinct form [Plato]
9. Objects / B. Unity of Objects / 1. Unifying an Object / c. Unity as conceptual
A thing can become one or many, depending on how we talk about it [Plato]
9. Objects / B. Unity of Objects / 2. Substance / a. Substance
Powers are part of our idea of substances [Locke]
9. Objects / B. Unity of Objects / 2. Substance / c. Types of substance
Plato's holds that there are three substances: Forms, mathematical entities, and perceptible bodies [Plato, by Aristotle]
We can conceive of three sorts of substance: God, finite intelligence, and bodies [Locke]
We sort and name substances by nominal and not by real essence [Locke]
9. Objects / B. Unity of Objects / 2. Substance / d. Substance defined
We think of substance as experienced qualities plus a presumed substratum of support [Locke]
9. Objects / B. Unity of Objects / 2. Substance / e. Substance critique
We don't know what substance is, and only vaguely know what it does [Locke]
9. Objects / B. Unity of Objects / 3. Unity Problems / d. Coincident objects
Locke may accept coinciding material substances, such as body, man and person [Locke, by Pasnau]
9. Objects / C. Structure of Objects / 5. Composition of an Object
In Parmenides, if composition is identity, a whole is nothing more than its parts [Plato, by Harte,V]
If one object is divided into its parts, someone can then say that one are many and many is one [Plato]
A mass consists of its atoms, so the addition or removal of one changes its identity [Locke]
9. Objects / C. Structure of Objects / 7. Substratum
Complex ideas are collections of qualities we attach to an unknown substratum [Locke]
9. Objects / C. Structure of Objects / 8. Parts of Objects / a. Parts of objects
Plato says only a one has parts, and a many does not [Plato, by Harte,V]
Anything which has parts must be one thing, and parts are of a one, not of a many [Plato]
If a word has no parts and has a single identity, it turns out to be the same kind of thing as a letter [Plato]
9. Objects / C. Structure of Objects / 8. Parts of Objects / c. Wholes from parts
A sum is that from which nothing is lacking, which is a whole [Plato]
The whole can't be the parts, because it would be all of the parts, which is the whole [Plato]
Plato says wholes are either containers, or they're atomic, or they don't exist [Plato, by Koslicki]
It seems that the One must be composed of parts, which contradicts its being one [Plato]
9. Objects / D. Essence of Objects / 1. Essences of Objects
Particular substances are coexisting ideas that seem to flow from a hidden essence [Locke]
The best I can make of real essence is figure, size and connection of solid parts [Locke]
Real essence is the constitution of the unknown parts of a body which produce its qualities [Locke]
9. Objects / D. Essence of Objects / 2. Types of Essence
Only universals have essence [Plato, by Politis]
Locke may distinguish real essence from internal constitution, claiming the latter is knowable [Locke, by Jones,J-E]
9. Objects / D. Essence of Objects / 3. Individual Essences
Things don't have every attribute, and essence isn't private, so each thing has an essence [Plato]
We can conceive an individual without assigning it to a kind [Locke, by Jolley]
You can't distinguish individuals without the species as a standard [Locke]
Many individuals grouped under one name vary more than some things that have different names [Locke]
Every individual thing which exists has an essence, which is its internal constitution [Locke]
9. Objects / D. Essence of Objects / 4. Essence as Definition
To grasp a thing we need its name, its definition, and what it really is [Plato]
9. Objects / D. Essence of Objects / 5. Essence as Kind
The less rational view of essences is that they are moulds for kinds of natural thing [Locke]
Even real essence depends on a sort, since it is sorts which have the properties [Locke]
If every sort has its real essence, one horse, being many sorts, will have many essences [Locke]
9. Objects / D. Essence of Objects / 6. Essence as Unifier
Not all identity is unity of substance [Locke]
Plato and Aristotle take essence to make a thing what it is [Plato, by Politis]
Essence is the very being of any thing, whereby it is what it is [Locke]
9. Objects / D. Essence of Objects / 7. Essence and Necessity / c. Essentials are necessary
We can only slightly know necessary co-existence of qualities, if they are primary [Locke]
9. Objects / D. Essence of Objects / 8. Essence as Explanatory
Explanatory essence won't do, because it won't distinguish the accidental from the essential [Locke, by Pasnau]
9. Objects / D. Essence of Objects / 9. Essence and Properties
Lockean real essence makes a thing what it is, and produces its observable qualities [Locke, by Jones,J-E]
Locke's essences determine the other properties, so the two will change together [Locke, by Copi]
It is impossible for two things with the same real essence to differ in properties [Locke]
We cannot know what properties are necessary to gold, unless we first know its real essence [Locke]
9. Objects / D. Essence of Objects / 10. Essence as Species
In our ideas, the idea of essence is inseparable from the concept of a species [Locke]
If we based species on real essences, the individuals would be as indistinguishable as two circles [Locke]
Internal constitution doesn't decide a species; should a watch contain four wheels or five? [Locke]
9. Objects / D. Essence of Objects / 11. Essence of Artefacts
Artificial things like watches and pistols have distinct kinds [Locke]
9. Objects / D. Essence of Objects / 13. Nominal Essence
Things have real essences, but we categorise them according to the ideas we receive [Locke]
Real essence explains observable qualities, but not what kind of thing it is [Locke, by Jones,J-E]
If essence is 'nominal', artificial gold (with its surface features) would qualify as 'gold' [Locke, by Eagle]
'Nominal essence' is everything contained in the idea of a particular sort of thing [Locke, by Copi]
The observable qualities are never the real essence, since they depend on real essence [Locke]
In nominal essence, Locke confuses the set of properties with the abstracted idea of them [Eagle on Locke]
To be a nominal essence, a complex idea must exhibit unity [Locke]
Locke's real and nominal essence refers back to Aristotle's real and nominal definitions [Locke, by Jones,J-E]
Nominal Essence is the abstract idea to which a name is attached [Locke]
Essences relate to sorting words; if you replace those with names, essences vanish [Locke]
Real essences are unknown, so only the nominal essence connects things to a species [Locke]
Our ideas of substance are based on mental archetypes, but these come from the world [Locke]
For 'all gold is malleable' to be necessary, it must be part of gold's nominal essence [Locke]
9. Objects / D. Essence of Objects / 14. Knowledge of Essences
The essence of a triangle is simple; presumably substance essences are similar [Locke]
A space between three lines is both the nominal and real essence of a triangle, the source of its properties [Locke]
The schools recognised that they don't really know essences, because they couldn't coin names for them [Locke]
9. Objects / D. Essence of Objects / 15. Against Essentialism
Is the being or essence of each thing private to each person? [Plato]
There are no independent natural kinds - or our classifications have to be subjective [Locke, by Jolley]
We know five properties of gold, but cannot use four of them to predict the fifth one [Locke]
9. Objects / E. Objects over Time / 1. Objects over Time
Identity means that the idea of a thing remains the same over time [Locke]
9. Objects / E. Objects over Time / 7. Intermittent Objects
One thing cannot have two beginnings of existence, nor two things one beginning [Locke]
9. Objects / E. Objects over Time / 9. Ship of Theseus
The ship which Theseus took to Crete is now sent to Delos crowned with flowers [Plato]
9. Objects / F. Identity among Objects / 3. Relative Identity
Same person, man or substance are different identities, belonging to different ideas [Locke]
9. Objects / F. Identity among Objects / 5. Self-Identity
Two things can't occupy one place and time, which leads us to the idea of self-identity [Locke]
9. Objects / F. Identity among Objects / 6. Identity between Objects
Two things relate either as same or different, or part of a whole, or the whole of the part [Plato]
9. Objects / F. Identity among Objects / 7. Indiscernible Objects
If we made a perfect duplicate of Cratylus, there would be two Cratyluses [Plato]
10. Modality / D. Knowledge of Modality / 1. A Priori Necessary
Some of our ideas contain relations which we cannot conceive to be absent [Locke]
11. Knowledge Aims / A. Knowledge / 1. Knowledge
Knowledge must be of the permanent unchanging nature of things [Plato]
Our knowledge falls short of the extent of our own ideas [Locke]
Knowing how to achieve immortality is pointless without the knowledge how to use immortality [Plato]
Things are only knowable if a rational account (logos) is possible [Plato]
11. Knowledge Aims / A. Knowledge / 2. Understanding
Expertise is knowledge of the whole by means of the parts [Plato]
11. Knowledge Aims / A. Knowledge / 3. Value of Knowledge
The only real evil is loss of knowledge [Plato]
True opinions only become really valuable when they are tied down by reasons [Plato]
The most important things in life are wisdom and knowledge [Plato]
11. Knowledge Aims / A. Knowledge / 4. Belief / c. Aim of beliefs
It is impossible to believe something which is held to be false [Plato]
11. Knowledge Aims / A. Knowledge / 4. Belief / d. Cause of beliefs
How can a belief exist if its object doesn't exist? [Plato]
When two ideas agree in my mind, I cannot refuse to see and know it [Locke]
11. Knowledge Aims / B. Certain Knowledge / 1. Certainty
How can you be certain about aspects of the world if they aren't constant? [Plato]
The greatest certainty is knowing our own ideas, and that two ideas are different [Locke]
General certainty is only found in ideas [Locke]
If it is knowledge, it is certain; if it isn't certain, it isn't knowledge [Locke]
11. Knowledge Aims / B. Certain Knowledge / 3. Fallibilism
Knowledge by senses is less certain than that by intuition or reason, but it is still knowledge [Locke]
11. Knowledge Aims / B. Certain Knowledge / 4. The Cogito
I am as certain of the thing doubting, as I am of the doubt [Locke]
12. Knowledge Sources / A. A Priori Knowledge / 3. Innate Knowledge / a. Innate knowledge
Innate ideas are trivial (if they are just potentials) or absurd (if they claim infants know a lot) [Locke, by Jolley]
If the only test of innateness is knowing, then all of our knowledge is innate [Locke]
A proposition can't be in the mind if we aren't conscious of it [Locke]
Innate ideas were followed up with innate doctrines, which stopped reasoning and made social control possible [Locke]
12. Knowledge Sources / A. A Priori Knowledge / 3. Innate Knowledge / b. Recollection doctrine
Seeking and learning are just recollection [Plato]
The slave boy learns geometry from questioning, not teaching, so it is recollection [Plato]
People are obviously recollecting when they react to a geometrical diagram [Plato]
If we feel the inadequacy of a resemblance, we must recollect the original [Plato]
The soul gets its goodness from god, and its evil from previous existence. [Plato]
12. Knowledge Sources / A. A Priori Knowledge / 3. Innate Knowledge / c. Tabula rasa
The mind is white paper, with no writing, or ideas [Locke]
The mind is a blank page, on which only experience can write [Locke]
The senses first let in particular ideas, which furnish the empty cabinet [Locke]
12. Knowledge Sources / A. A Priori Knowledge / 6. A Priori from Reason
To achieve pure knowledge, we must get rid of the body and contemplate things with the soul [Plato]
12. Knowledge Sources / A. A Priori Knowledge / 10. A Priori as Subjective
The mind cannot produce simple ideas [Locke]
12. Knowledge Sources / B. Perception / 1. Perception
Perception is infallible, suggesting that it is knowledge [Plato]
Our senses could have been separate, but they converge on one mind [Plato]
12. Knowledge Sources / B. Perception / 2. Qualities in Perception / a. Qualities in perception
A 'quality' is a power to produce an idea in our minds [Locke]
12. Knowledge Sources / B. Perception / 2. Qualities in Perception / b. Primary/secondary
Hands can report conflicting temperatures, but not conflicting shapes [Locke]
Colours, smells and tastes are ideas; the secondary qualities have no colour, smell or taste [Locke, by Alexander,P]
Secondary qualities are powers of complex primary qualities to produce sensations in us [Locke]
We can't know how primary and secondary qualities connect together [Locke]
12. Knowledge Sources / B. Perception / 2. Qualities in Perception / c. Primary qualities
Locke believes matter is an inert, senseless substance, with extension, figure and motion [Locke, by Berkeley]
Qualities are named as primary if they are needed for scientific explanation [Locke, by Alexander,P]
Primary qualities produce simple ideas, such as solidity, extension, motion and number [Locke]
Ideas of primary qualities resemble their objects, but those of secondary qualities don't [Locke]
In Locke, the primary qualities are also powers [Locke, by Heil]
12. Knowledge Sources / B. Perception / 2. Qualities in Perception / d. Secondary qualities
In my view Locke's 'textures' are groups of corpuscles which are powers (rather than 'having' powers) [Locke, by Alexander,P]
I suspect that Locke did not actually believe colours are 'in the mind' [Locke, by Heil]
Secondary qualities are simply the bare powers of an object [Locke]
12. Knowledge Sources / B. Perception / 6. Inference in Perception
Molyneux's Question: could a blind man distinguish cube from sphere, if he regained his sight? [Locke]
12. Knowledge Sources / C. Rationalism / 1. Rationalism
With what physical faculty do we perceive pairs of opposed abstract qualities? [Plato]
You might mistake eleven for twelve in your senses, but not in your mind [Plato]
A soul without understanding is ugly [Plato]
If theory and practice conflict, the best part of the mind accepts theory, so the other part is of lower grade [Plato]
Thought must grasp being itself before truth becomes possible [Plato]
True knowledge is of the reality behind sense experience [Plato]
Only bird-brained people think astronomy is entirely a matter of evidence [Plato]
12. Knowledge Sources / D. Empiricism / 1. Empiricism
All the ideas written on the white paper of the mind can only come from one place - experience [Locke]
12. Knowledge Sources / D. Empiricism / 2. Associationism
Some ideas connect together naturally, while others connect by chance or custom [Locke]
The constant link between whiteness and things that produce it is the basis of our knowledge [Locke]
Knowledge is just the connection or disagreement of our ideas [Locke]
12. Knowledge Sources / D. Empiricism / 4. Pro-Empiricism
The absolute boundaries of our thought are the ideas we get from senses and the mind [Locke]
12. Knowledge Sources / D. Empiricism / 5. Empiricism Critique
It is unclear how identity, equality, perfection, God, power and cause derive from experience [Locke, by Dancy,J]
12. Knowledge Sources / E. Direct Knowledge / 2. Intuition
Intuition gives us direct and certain knowledge of what is obvious [Locke]
13. Knowledge Criteria / A. Justification Problems / 1. Justification / b. Need for justification
True belief without knowledge is like blind people on the right road [Plato]
As a guide to action, true opinion is as good as knowledge [Plato]
An inadequate rational account would still not justify knowledge [Plato]
Believing without a reason may just be love of your own fantasies [Locke]
True opinion without reason is midway between wisdom and ignorance [Plato]
13. Knowledge Criteria / A. Justification Problems / 2. Justification Challenges / a. Agrippa's trilemma
Parts and wholes are either equally knowable or equally unknowable [Plato]
Without distinguishing marks, how do I know what my beliefs are about? [Plato]
13. Knowledge Criteria / A. Justification Problems / 3. Internal or External / a. Pro-internalism
A rational account might be seeing an image of one's belief, like a reflection in a mirror [Plato]
A rational account involves giving an image, or analysis, or giving a differentiating mark [Plato]
13. Knowledge Criteria / B. Internal Justification / 4. Foundationalism / a. Foundationalism
Maybe primary elements can be named, but not receive a rational account [Plato]
13. Knowledge Criteria / B. Internal Justification / 5. Coherentism / a. Coherence as justification
Facts beyond immediate experience are assessed by agreement with known truths and observations [Locke]
13. Knowledge Criteria / B. Internal Justification / 5. Coherentism / b. Pro-coherentism
A rational account of a wagon would mean knowledge of its hundred parts [Plato]
13. Knowledge Criteria / C. External Justification / 1. External Justification
For Locke knowledge relates to objects, not to propositions [Locke, by Rorty]
13. Knowledge Criteria / C. External Justification / 3. Reliabilism / a. Reliable knowledge
Say how many teeth the other has, then count them. If you are right, we will trust your other claims [Plato]
13. Knowledge Criteria / C. External Justification / 8. Social Justification
Other men's opinions don't add to our knowledge - even when they are true [Locke]
13. Knowledge Criteria / D. Scepticism / 1. Scepticism
There can't be any knowledge if things are constantly changing [Plato]
13. Knowledge Criteria / D. Scepticism / 5. Dream Scepticism
What evidence can be brought to show whether we are dreaming or not? [Plato]
13. Knowledge Criteria / D. Scepticism / 6. Scepticism Critique
You don't need to learn what you know, and how do you seek for what you don't know? [Plato]
Locke has no patience with scepticism [Locke, by Robinson,H]
13. Knowledge Criteria / E. Relativism / 6. Relativism Critique
Do the gods also hold different opinions about what is right and honourable? [Plato]
Clearly some people are superior to others when it comes to medicine [Plato]
If you claim that all beliefs are true, that includes beliefs opposed to your own [Plato]
How can a relativist form opinions about what will happen in the future? [Plato]
14. Science / A. Basis of Science / 5. Anomalies
If the apparent facts strongly conflict with probability, it is in everyone's interests to suppress the facts [Plato]
14. Science / D. Explanation / 1. Explanation / b. Aims of explanation
A good explanation totally rules out the opposite explanation (so Forms are required) [Plato, by Ruben]
14. Science / D. Explanation / 2. Types of Explanation / g. Causal explanations
To investigate the causes of things, study what is best for them [Plato]
14. Science / D. Explanation / 2. Types of Explanation / k. Explanations by essence
Locke seems to use real essence for scientific explanation, and substratum for the being of a thing [Locke, by Jones,J-E]
To explain qualities, Locke invokes primary and secondary qualities, not real essences [Locke, by Jones,J-E]
Gold is supposed to have a real essence, from whence its detectable properties flow [Locke]
15. Nature of Minds / A. Nature of Mind / 1. Mind / e. Questions about mind
Is the function of the mind management, authority and planning - or is it one's whole way of life? [Plato]
15. Nature of Minds / A. Nature of Mind / 2. Psuche
Soul causes the body to live, and gives it power to breathe and to be revitalized [Plato]
Psychic conflict is clear if appetite is close to the body and reason fairly separate [Plato, by Modrak]
There is a third element to the mind - spirit - lying between reason and appetite [Plato]
The soul is self-motion [Plato]
Plato says the soul is ordered by number [Plato, by Plutarch]
Soul is what is defined by 'self-generating motion' [Plato]
15. Nature of Minds / A. Nature of Mind / 4. Other Minds / c. Knowing other minds
We are satisfied that other men have minds, from their words and actions [Locke]
15. Nature of Minds / A. Nature of Mind / 5. Unity of Mind
The mind has parts, because we have inner conflicts [Plato]
The soul seems to have an infinity of parts [Aristotle on Plato]
15. Nature of Minds / A. Nature of Mind / 7. Animal Minds
Unlike humans, animals cannot entertain general ideas [Locke]
15. Nature of Minds / A. Nature of Mind / 8. Brain
Do we think and experience with blood, air or fire, or could it be our brain? [Plato]
15. Nature of Minds / B. Features of Minds / 1. Consciousness / f. Higher-order thought
Consciousness is the perception of what passes in a man's own mind [Locke]
15. Nature of Minds / B. Features of Minds / 2. Unconscious Mind
If we aren't aware that an idea is innate, the concept of innate is meaningless; if we do, all ideas seem innate [Locke]
15. Nature of Minds / B. Features of Minds / 6. Inverted Qualia
There is nothing illogical about inverted qualia [Locke]
The same object might produce violet in one mind and marigold in another [Locke]
15. Nature of Minds / C. Capacities of Minds / 2. Imagination
Locke's view that thoughts are made of ideas asserts the crucial role of imagination [Locke]
15. Nature of Minds / C. Capacities of Minds / 4. Objectification
Every external object or internal idea suggests to us the idea of unity [Locke]
The mind can make a unity out of anything, no matter how diverse [Locke]
15. Nature of Minds / C. Capacities of Minds / 5. Generalisation by mind
The mind creates abstractions by generalising about appearances of objects, ignoring time or place [Locke]
General words represent general ideas, which are abstractions from immediate circumstances [Locke]
15. Nature of Minds / C. Capacities of Minds / 7. Seeing Resemblance
Everything resembles everything else up to a point [Plato]
15. Nature of Minds / C. Capacities of Minds / 8. Remembering Contiguity
If a man sees a friend die in a room, he associates the pain with the room [Locke]
16. Persons / A. Concept of a Person / 1. Existence of Persons
Locke uses 'self' for a momentary entity, and 'person' for an extended one [Locke, by Martin/Barresi]
A person is intelligent, rational, self-aware, continuous, conscious [Locke]
16. Persons / A. Concept of a Person / 2. Persons as Responsible
Someone mad then sane is two persons, judging by our laws and punishments [Locke]
'Person' is a term used about responsibility, involving law, and happiness and misery [Locke]
16. Persons / B. Nature of the Self / 1. Self and Consciousness
Our personal identity must depend on something we are aware of, namely consciousness [Locke]
My little finger is part of me if I am conscious of it [Locke]
16. Persons / B. Nature of the Self / 3. Self as Non-physical
My individuality is my soul, which carries my body around [Plato]
16. Persons / D. Continuity of the Self / 1. Identity and the Self
One soul can't be more or less of a soul than another [Plato]
16. Persons / D. Continuity of the Self / 2. Mental Continuity / a. Memory is Self
Personal identity is my perceptions, but not my memory, as I forget too much [Ayer on Locke]
Locke's theory confusingly tries to unite consciousness and memory [Reid on Locke]
Locke mistakes similarity of a memory to its original event for identity [Reid on Locke]
Identity over time involves remembering actions just as they happened [Locke]
Should we punish people who commit crimes in their sleep? [Locke]
16. Persons / D. Continuity of the Self / 2. Mental Continuity / b. Self as mental continuity
For Locke, conscious awareness unifies a person at an instant and over time [Locke, by Martin/Barresi]
If the soul individuates a man, and souls are transferable, then a hog could be a man [Locke]
Identity must be in consciousness not substance, because it seems transferable [Locke]
If someone becomes conscious of Nestor's actions, then he is Nestor [Locke]
If a prince's soul entered a cobbler's body, the person would be the prince (and the man the cobbler) [Locke]
On Judgement Day, no one will be punished for actions they cannot remember [Locke]
Locke sees underlying substance as irrelevant to personal identity [Locke, by Noonan]
16. Persons / D. Continuity of the Self / 2. Mental Continuity / c. Inadequacy of mental continuity
Locke implies that each thought has two thinkers - me, and 'my' substance [Merricks on Locke]
Two persons might have qualitatively identical consciousnesses, so that isn't enough [Kant on Locke]
Locke's move from substance to consciousness is a slippery slope [Butler on Locke]
No two thoughts at different times can be the same, as they have different beginnings [Locke]
Locke confuses the test for personal identity with the thing itself [Reid on Locke]
If consciousness is interrupted, and we forget our past selves, are we still the same thinking thing? [Locke]
If identity is consciousness, could a person move between bodies or fragment into parts? [Reid on Locke]
Locke's memory theory of identity confuses personal identity with the test for it [Reid on Locke]
Butler thought Locke's theory was doomed once he rejected mental substance [Perry on Locke]
16. Persons / E. Rejecting the Self / 1. Self as Indeterminate
We call a person the same throughout life, but all their attributes change [Plato]
Nothing about me is essential [Locke]
Only the gods stay unchanged; we replace our losses with similar acquisitions [Plato]
16. Persons / F. Free Will / 1. Nature of Free Will
We are free to decide not to follow our desires [Locke]
16. Persons / F. Free Will / 5. Against Free Will
Men are not free to will, because they cannot help willing [Locke]
16. Persons / F. Free Will / 6. Determinism / a. Determinism
No one wants to be bad, but bad men result from physical and educational failures, which they do not want or choose [Plato]
16. Persons / F. Free Will / 7. Compatibilism
Liberty is a power of agents, so can't be an attribute of wills [Locke]
A man is free insofar as he can act according to his own preferences [Locke]
17. Mind and Body / A. Mind-Body Dualism / 8. Dualism of Mind Critique
For all we know, an omnipotent being might have enabled material beings to think [Locke]
17. Mind and Body / D. Property Dualism / 6. Mysterianism
Thinking without matter and matter that thinks are equally baffling [Locke]
We can't begin to conceive what would produce some particular experience within our minds [Locke]
Thoughts moving bodies, and bodies producing thoughts, are equally unknowable [Locke]
18. Thought / A. Modes of Thought / 3. Emotions / g. Controlling emotions
Plato saw emotions and appetites as wild horses, in need of taming [Plato, by Goldie]
Plato wanted to somehow control and purify the passions [Vlastos on Plato]
18. Thought / A. Modes of Thought / 8. Human Thought
For Locke, abstract ideas are our main superiority of understanding over animals [Locke, by Berkeley]
18. Thought / C. Content / 2. Ideas
Complex ideas are all resolvable into simple ideas [Locke]
The word 'idea' covers thinking best, for imaginings, concepts, and basic experiences [Locke]
Ideas are the objects of understanding when we think [Locke]
18. Thought / D. Concepts / 2. Origin of Concepts / b. Empirical concepts
All our ideas derive either from sensation, or from inner reflection [Locke]
Simple ideas are produced in us by external things, and they match their appearances [Locke]
18. Thought / D. Concepts / 2. Origin of Concepts / c. Nativist concepts
Innate ideas are nothing, if they are in the mind but we are unaware of them [Locke]
18. Thought / E. Abstraction / 1. Abstract Thought
A species of thing is an abstract idea, and a word is a sign that refers to the idea [Locke]
19. Language / A. Nature of Meaning / 2. Meaning as Mental
Words were devised as signs for inner ideas, and their basic meaning is those ideas [Locke]
Words stand for the ideas in the mind of him that uses them [Locke]
19. Language / B. Reference / 3. Direct Reference / c. Social reference
For the correct reference of complex ideas, we can only refer to experts [Locke]
19. Language / F. Communication / 1. Rhetoric
Only a good philosopher can be a good speaker [Plato]
The 'Republic' is a great work of rhetorical theory [Lawson-Tancred on Plato]
Rhetoric can produce conviction, but not educate people about right and wrong [Plato]
Plato's whole philosophy may be based on being duped by reification - a figure of speech [Benardete,JA on Plato]
'Phaedrus' pioneers the notion of philosophical rhetoric [Lawson-Tancred on Plato]
An excellent speech seems to imply a knowledge of the truth in the mind of the speaker [Plato]
The question of whether or not to persuade comes before the science of persuasion [Plato]
Rhetoric is irrational about its means and its ends [Plato]
19. Language / F. Communication / 4. Private Language
Since words are just conventional, we can represent our own ideas with any words we please [Locke]
20. Action / B. Preliminaries of Action / 1. Intention to Act / b. Types of intention
All activity aims at the good [Plato]
20. Action / B. Preliminaries of Action / 2. Willed Action / a. Will to Act
For Plato and Aristotle there is no will; there is only rational desire for what is seen as good [Plato, by Frede,M]
20. Action / C. Motives for Action / 2. Acting on Beliefs / a. Acting on beliefs
We avoid evil either through a natural aversion, or because we have acquired knowledge [Plato]
20. Action / C. Motives for Action / 3. Acting on Reason / b. Intellectualism
Courage is knowing what should or shouldn't be feared [Plato]
If goodness needs true opinion but not knowledge, you can skip the 'examined life' [Vlastos on Plato]
21. Aesthetics / A. Aesthetic Experience / 4. Beauty
Beauty is harmony with what is divine, and ugliness is lack of such harmony [Plato]
If goodness involves moderation and proportion, then it seems to be found in beauty [Plato]
What is fine is always difficult [Plato]
Love of ugliness is impossible [Plato]
Beauty and goodness are the same [Plato]
Beauty is the clearest and most lovely of the Forms [Plato]
People who value beauty above virtue insult the soul by placing the body above it [Plato]
21. Aesthetics / A. Aesthetic Experience / 5. Natural Beauty
Stage two is the realisation that beauty of soul is of more value than beauty of body [Plato]
Progress goes from physical beauty, to moral beauty, to the beauty of knowledge, and reaches absolute beauty [Plato]
Non-physical beauty can only be shown clearly by speech [Plato]
21. Aesthetics / B. Nature of Art / 8. The Arts / a. Music
Music is a knowledge of love in the realm of harmony and rhythm [Plato]
Music has harmony like the soul, and serves to reorder disharmony within us [Plato]
21. Aesthetics / B. Nature of Art / 8. The Arts / b. Literature
Without the surface decoration, poetry shows only appearances and nothing of what is real [Plato]
21. Aesthetics / C. Artistic Issues / 3. Artistic Representation
Representation is two steps removed from the truth [Plato]
21. Aesthetics / C. Artistic Issues / 6. Value of Art
Artists should be excluded from a law-abiding community, because they destroy the rational mind [Plato]
Truth is closely related to proportion [Plato]
21. Aesthetics / C. Artistic Issues / 7. Art and Morality
What is fine is the parent of goodness [Plato]
22. Metaethics / A. Ethics Foundations / 1. Nature of Ethics / a. Preconditions for ethics
To understand morality requires a soul [Plato]
22. Metaethics / A. Ethics Foundations / 1. Nature of Ethics / b. Defining ethics
I suggest that we forget about trying to define goodness itself for the time being [Plato]
22. Metaethics / A. Ethics Foundations / 1. Nature of Ethics / d. Ethical theory
There couldn't be a moral rule of which a man could not justly demand a reason [Locke]
What knowledge is required to live well? [Plato]
22. Metaethics / A. Ethics Foundations / 2. Source of Ethics / a. Idealistic ethics
The good cannot be expressed in words, but imprints itself upon the soul [Plato, by Celsus]
22. Metaethics / A. Ethics Foundations / 2. Source of Ethics / b. Rational ethics
Pursuit of happiness is the highest perfection of intellectual nature [Locke]
Morality can be demonstrated, because we know the real essences behind moral words [Locke]
We can demand a reason for any moral rule [Locke]
22. Metaethics / A. Ethics Foundations / 2. Source of Ethics / c. Ethical intuitionism
Plato never refers to examining the conscience [Plato, by Foucault]
22. Metaethics / A. Ethics Foundations / 2. Source of Ethics / e. Human nature
The two ruling human principles are the natural desire for pleasure, and an acquired love of virtue [Plato]
22. Metaethics / A. Ethics Foundations / 2. Source of Ethics / f. Übermensch
Plato found that he could only enforce rational moral justification by creating an authoritarian society [Williams,B on Plato]
22. Metaethics / A. Ethics Foundations / 2. Source of Ethics / g. Will to power
Moral rules are made by the weak members of humanity [Plato]
22. Metaethics / A. Ethics Foundations / 2. Source of Ethics / j. Ethics by convention
We should follow the law in public, and nature in private [Antiphon]
As religion and convention collapsed, Plato sought morals not just in knowledge, but in the soul [Williams,B on Plato]
To gain the greatest advantage only treat law as important when other people are present [Antiphon]
22. Metaethics / B. Value / 1. Nature of Value / b. Fact and value
Plato measured the degree of reality by the degree of value [Nietzsche on Plato]
22. Metaethics / B. Value / 2. Values / b. Successful function
A thing's function is what it alone can do, or what it does better than other things [Plato]
If something has a function then it has a state of being good [Plato]
22. Metaethics / B. Value / 2. Values / d. Health
Goodness is mental health, badness is mental sickness [Plato]
22. Metaethics / B. Value / 2. Values / f. Altruism
The just man does not harm his enemies, but benefits everyone [Plato]
22. Metaethics / B. Value / 2. Values / g. Love
Love assists men in achieving merit and happiness [Plato]
Love is desire for perpetual possession of the good [Plato]
Love follows beauty, wisdom is exceptionally beautiful, so love follows wisdom [Plato]
22. Metaethics / B. Value / 2. Values / h. Fine deeds
A good person is bound to act well, and this brings happiness [Plato]
22. Metaethics / B. Value / 2. Values / i. Self-interest
If we were invisible, would the just man become like the unjust? [Plato]
Is it natural to simply indulge our selfish desires? [Plato]
Clever criminals do well at first, but not in the long run [Plato]
22. Metaethics / B. Value / 2. Values / j. Evil
No one willingly and knowingly embraces evil [Plato]
22. Metaethics / C. The Good / 1. Goodness / a. Form of the Good
The main aim is to understand goodness, which gives everything its value and advantage [Plato]
Every person, and every activity, aims at the good [Plato]
Neither intellect nor pleasure are the good, because they are not perfect and self-sufficient [Plato]
Good has the same role in the world of knowledge as the sun has in the physical world [Plato]
The sight of goodness leads to all that is fine and true and right [Plato]
For Plato we abandon honour and pleasure once we see the Good [Plato, by Taylor,C]
The good is beautiful [Plato]
The good involves beauty, proportion and truth [Plato]
Goodness makes truth and knowledge possible [Plato]
Bad is always destructive, where good preserves and benefits [Plato]
22. Metaethics / C. The Good / 1. Goodness / b. Types of good
Good first, then beauty, then reason, then knowledge, then pleasure [Plato, by PG]
Plato's legacy to European thought was the Good, the Beautiful and the True [Plato, by Gray]
22. Metaethics / C. The Good / 1. Goodness / d. Good as virtue
If a person is good they will automatically become happy [Plato]
22. Metaethics / C. The Good / 1. Goodness / e. Good as knowledge
Only knowledge of some sort is good [Plato]
Pleasure is commonly thought to be the good, though the more ingenious prefer knowledge [Plato]
22. Metaethics / C. The Good / 1. Goodness / f. Good as pleasure
In slaking our thirst the goodness of the action and the pleasure are clearly separate [Plato]
Pleasure is better with the addition of intelligence, so pleasure is not the good [Plato, by Aristotle]
Good should be the aim of pleasant activity, not the other way round [Plato]
Even people who think pleasure is the good admit that there are bad pleasures [Plato]
22. Metaethics / C. The Good / 1. Goodness / g. Consequentialism
An action is only just if it is performed by someone with a just character and outlook [Plato]
22. Metaethics / C. The Good / 1. Goodness / h. Good as benefit
Some things are good even though they are not beneficial to men [Plato]
22. Metaethics / C. The Good / 1. Goodness / i. Moral luck
Attempted murder is like real murder, but we should respect the luck which avoided total ruin [Plato]
22. Metaethics / C. The Good / 2. Happiness / b. Eudaimonia
Happiness is secure enjoyment of what is good and beautiful [Plato]
22. Metaethics / C. The Good / 2. Happiness / c. Value of happiness
A concern for happiness is the inevitable result of consciousness [Locke]
22. Metaethics / C. The Good / 2. Happiness / d. Routes to happiness
Plato decided that the virtuous and happy life was the philosophical life [Plato, by Nehamas]
One should exercise both the mind and the body, to avoid imbalance [Plato]
22. Metaethics / C. The Good / 3. Pleasure / a. Nature of pleasure
Some of the pleasures and pains we feel are false [Plato]
22. Metaethics / C. The Good / 3. Pleasure / b. Types of pleasure
A small pure pleasure is much finer than a large one contaminated with pain [Plato]
Nice smells are intensive, have no preceding pain, and no bad after-effect [Plato]
22. Metaethics / C. The Good / 3. Pleasure / c. Value of pleasure
Reason, memory, truth and wisdom are far better than pleasure, for those who can attain them [Plato]
Would you prefer a life of pleasure without reason, or one of reason without pleasure? [Plato]
It is unlikely that the gods feel either pleasure or pain [Plato]
It would be strange if the gods rewarded those who experienced the most pleasure in life [Plato]
Some pleasures are not good, and some pains are not evil [Plato]
People tend only to disapprove of pleasure if it leads to pain, or prevents future pleasure [Plato]
Philosophers are concerned with totally non-physical pleasures [Plato]
Most pleasure is release from pain, and is therefore not worthwhile [Plato]
Pleasure is certainly very pleasant, but it doesn't follow that all pleasures are good [Plato]
The good must be sufficient and perfect, and neither intellect nor pleasure are that [Plato]
22. Metaethics / C. The Good / 3. Pleasure / d. Sources of pleasure
We feel pleasure when we approach our natural state of harmony [Plato]
There are three types of pleasure, for reason, for spirit and for appetite [Plato]
22. Metaethics / C. The Good / 3. Pleasure / e. Role of pleasure
Everything that takes place naturally is pleasant [Plato]
It is a mistake to think that the most violent pleasure or pain is therefore the truest reality [Plato]
Good and bad people seem to experience equal amounts of pleasure and pain [Plato]
Intense pleasure and pain are not felt in a good body, but in a worthless one [Plato]
22. Metaethics / C. The Good / 3. Pleasure / f. Dangers of pleasure
Excessive pleasure deranges people, making the other virtues impossible [Plato]
The conquest of pleasure is the noblest victory of all [Plato]
If happiness is the satisfaction of desires, then a life of scratching itches should be happiness [Plato]
Pleasure-seekers desperately seek illusory satisfaction, like filling a leaky vessel [Plato]
In a fool's mind desire is like a leaky jar, insatiable in its desires, and order and contentment are better [Plato]
23. Ethics / A. Egoism / 1. Ethical Egoism
We should behave well even if invisible, for the health of the mind [Plato]
Wickedness is an illness of the soul [Plato]
23. Ethics / A. Egoism / 2. Hedonism
Is the happiest state one of sensual, self-indulgent freedom? [Plato]
If you lived a life of maximum pleasure, would you still be lacking anything? [Plato]
A life of pure pleasure with no intellect is the life of a jellyfish [Plato]
Things are good and evil only in reference to pleasure and pain [Locke]
Hedonists must say that someone in pain is bad, even if they are virtuous [Plato]
23. Ethics / B. Contract Ethics / 1. Contractarianism
Justice is merely the interests of the stronger party [Plato]
Isn't it better to have a reputation for goodness than to actually be good? [Plato]
Morality is a compromise, showing restraint, to avoid suffering wrong without compensation [Plato]
23. Ethics / B. Contract Ethics / 3. Promise Keeping
Surely you don't return a borrowed weapon to a mad friend? [Plato]
23. Ethics / B. Contract Ethics / 4. Value of Authority
Is right just the interests of the powerful? [Plato]
23. Ethics / B. Contract Ethics / 5. Free Rider
Sin first, then sacrifice to the gods from the proceeds [Plato]
23. Ethics / C. Virtue Theory / 1. Virtue Theory / a. Nature of virtue
'Arete' signifies lack of complexity and a free-flowing soul [Plato]
Plato, unusually, said that theoretical and practical wisdom are inseparable [Plato, by Kraut]
23. Ethics / C. Virtue Theory / 1. Virtue Theory / b. Basis of virtue
Actions are virtuous if they are judged praiseworthy [Locke]
23. Ethics / C. Virtue Theory / 2. Elements of Virtue Theory / c. Motivation for virtue
The only slavery which is not dishonourable is slavery to excellence [Plato]
Reason impels us towards excellence, which teaches us self-control [Plato]
For Plato, virtue is its own reward [Lawson-Tancred on Plato]
Virtue is a concord of reason and emotion, with pleasure and pain trained to correct ends [Plato]
A serious desire for moral excellence is very rare indeed [Plato]
Every crime is the result of excessive self-love [Plato]
The only worthwhile life is one devoted to physical and moral perfection [Plato]
Should we avoid evil because it will bring us bad consequences? [Plato]
The first step on the right path is the contemplation of physical beauty when young [Plato]
23. Ethics / C. Virtue Theory / 2. Elements of Virtue Theory / d. Teaching virtue
It seems that virtue is neither natural nor taught, but is a divine gift [Plato]
If we punish wrong-doers, it shows that we believe virtue can be taught [Plato]
Virtue is the aim of all laws [Plato]
Is virtue taught, or achieved by practice, or a natural aptitude, or what? [Plato]
If virtue is a type of knowledge then it ought to be taught [Plato]
Socrates did not believe that virtue could be taught [Plato]
Socrates is contradicting himself in claiming virtue can't be taught, but that it is knowledge [Plato]
23. Ethics / C. Virtue Theory / 2. Elements of Virtue Theory / e. Character
I would rather be a victim of crime than a criminal [Plato]
The way you spend your time will form your character [Antiphon]
23. Ethics / C. Virtue Theory / 2. Elements of Virtue Theory / f. The Mean
The arts produce good and beautiful things by preserving the mean [Plato]
Something which lies midway between two evils is better than either of them [Plato]
23. Ethics / C. Virtue Theory / 2. Elements of Virtue Theory / j. Unity of virtue
True goodness requires mental unity and harmony [Plato]
The Guardians must aim to discover the common element in the four cardinal virtues [Plato]
Even if virtues are many and various, they must have something in common to make them virtues [Plato]
How can you know part of virtue without knowing the whole? [Plato]
23. Ethics / C. Virtue Theory / 3. Virtues / a. Virtues
A good community necessarily has wisdom, courage, self-discipline and morality [Plato]
23. Ethics / C. Virtue Theory / 3. Virtues / b. Temperance
If absence of desire is happiness, then nothing is happier than a stone or a corpse [Plato]
Excessive laughter and tears must be avoided [Plato]
Self-indulgent desire makes friendship impossible, because it makes a person incapable of co-operation [Plato]
23. Ethics / C. Virtue Theory / 3. Virtues / c. Justice
Injustice is the mastery of the soul by bad feelings, even if they do not lead to harm [Plato]
If the parts of our soul do their correct work, we will be just people, and will act justly [Plato]
Do most people praise self-discipline and justice because they are too timid to gain their own pleasure? [Plato]
A criminal is worse off if he avoids punishment [Plato]
Simonides said morality is helping one's friends and harming one's enemies [Plato]
23. Ethics / C. Virtue Theory / 3. Virtues / d. Courage
Being unafraid (perhaps through ignorance) and being brave are two different things [Plato]
23. Ethics / C. Virtue Theory / 4. External Goods / b. Health
The popular view is that health is first, good looks second, and honest wealth third [Plato]
23. Ethics / C. Virtue Theory / 4. External Goods / c. Wealth
The best people are produced where there is no excess of wealth or poverty [Plato]
Virtue and great wealth are incompatible [Plato]
War aims at the acquisition of wealth, because we are enslaved to the body [Plato]
23. Ethics / C. Virtue Theory / 4. External Goods / d. Friendship
People say that friendship exists only between good men [Plato]
Bad people are never really friends with one another [Plato]
23. Ethics / F. Existentialism / 4. Boredom
Plato is boring [Nietzsche on Plato]
24. Political Theory / A. Basis of a State / 1. A People / b. The natural life
People need society because the individual has too many needs [Plato]
All countries are in a mutual state of nature [Locke]
We are not created for solitude, but are driven into society by our needs [Locke]
24. Political Theory / A. Basis of a State / 3. Natural Values / a. Natural freedom
In nature men can dispose of possessions and their persons in any way that is possible [Locke]
24. Political Theory / A. Basis of a State / 3. Natural Values / b. Natural equality
There is no subjection in nature, and all creatures of the same species are equal [Locke]
24. Political Theory / A. Basis of a State / 3. Natural Values / c. Natural rights
The rational law of nature says we are all equal and independent, and should show mutual respect [Locke]
The animals and fruits of the earth belong to mankind [Locke]
There is a natural right to inheritance within a family [Locke]
24. Political Theory / B. Nature of a State / 1. Purpose of a State
As with other things, a good state is organised and orderly [Plato]
All exchanges in a community are for mutual benefit [Plato]
Politics is the right to make enforceable laws to protect property and the state, for the common good [Locke]
24. Political Theory / B. Nature of a State / 2. State Legitimacy / c. Social contract
After a taste of mutual harm, men make a legal contract to avoid it [Plato]
The Second Treatise explores the consequences of the contractual view of the state [Locke, by Scruton]
A society only begins if there is consent of all the individuals to join it [Locke]
If anyone enjoys the benefits of government (even using a road) they give tacit assent to its laws [Locke]
A politic society is created from a state of nature by a unanimous agreement [Locke]
24. Political Theory / B. Nature of a State / 2. State Legitimacy / d. General will
A single will creates the legislature, which is duty-bound to preserve that will [Locke]
24. Political Theory / B. Nature of a State / 4. Citizenship
Anyone who enjoys the benefits of a state has given tacit consent to be part of it [Locke]
You can only become an actual member of a commonwealth by an express promise [Locke]
People doing their jobs properly is the fourth cardinal virtue for a city [Plato]
Children are not born into citizenship of a state [Locke]
24. Political Theory / C. Ruling a State / 2. Leaders / b. Monarchy
Absolute monarchy is inconsistent with civil society [Locke]
24. Political Theory / C. Ruling a State / 2. Leaders / c. Despotism
The idea that absolute power improves mankind is confuted by history [Locke]
Despotism is arbitrary power to kill, based neither on natural equality, nor any social contract [Locke]
People stripped of their property are legitimately subject to despotism [Locke]
Legitimate prisoners of war are subject to despotism, because that continues the state of war [Locke]
Totalitarian states destroy friendships and community spirit [Plato]
24. Political Theory / C. Ruling a State / 2. Leaders / d. Elites
Reluctant rulers make a better and more unified administration [Plato]
Only rule by philosophers of integrity can keep a community healthy [Plato]
24. Political Theory / C. Ruling a State / 3. Government / b. Legislature
Even the legislature must be preceded by a law which gives it power to make laws [Locke]
24. Political Theory / C. Ruling a State / 3. Government / c. Executive
The executive must not be the legislature, or they may exempt themselves from laws [Locke]
24. Political Theory / C. Ruling a State / 4. Changing the State / c. Revolution
Any obstruction to the operation of the legislature can be removed forcibly by the people [Locke]
Rebelling against an illegitimate power is no sin [Locke]
If legislators confiscate property, or enslave people, they are no longer owed obedience [Locke]
24. Political Theory / D. Ideologies / 2. Anarchism
Nothing is worse for mankind than anarchy [Antiphon]
24. Political Theory / D. Ideologies / 5. Democracy / a. Nature of democracy
The people have supreme power, to depose a legislature which has breached their trust [Locke]
Democracy is the worst of good constitutions, but the best of bad constitutions [Plato, by Aristotle]
Unanimous consent makes a united community, which is then ruled by the majority [Locke]
24. Political Theory / D. Ideologies / 5. Democracy / c. Direct democracy
A good citizen won't be passive, but will redirect the needs of the state [Plato]
24. Political Theory / D. Ideologies / 7. Communitarianism / a. Communitarianism
Education in virtue produces citizens who are active but obedient [Plato]
Is there anything better for a community than to produce excellent people? [Plato]
25. Social Practice / A. Freedoms / 1. Slavery
If you try to enslave me, you have declared war on me [Locke]
A master forfeits ownership of slaves he abandons [Locke]
Slaves captured in a just war have no right to property, so are not part of civil society [Locke]
25. Social Practice / A. Freedoms / 6. Political freedom
Freedom is not absence of laws, but living under laws arrived at by consent [Locke]
25. Social Practice / B. Equalities / 1. Grounds of equality
Do most people like equality because they are second-rate? [Plato]
Friendship is impossible between master and slave, even if they are made equal [Plato]
Men and women should qualify equally for honours on merit [Plato]
25. Social Practice / B. Equalities / 4. Economic equality
All value depends on the labour involved [Locke]
Does nature imply that it is right for better people to have greater benefits? [Plato]
25. Social Practice / C. Rights / 1. Basis of Rights
Sound laws achieve the happiness of those who observe them [Plato]
25. Social Practice / C. Rights / 3. Alienating rights
There is only a civil society if the members give up all of their natural executive rights [Locke]
We all own our bodies, and the work we do is our own [Locke]
25. Social Practice / C. Rights / 4. Property rights
Locke (and Marx) held that ownership of objects is a natural relation, based on the labour put into it [Locke, by Fogelin]
Locke says 'mixing of labour' entitles you to land, as well as nuts and berries [Wolff,J on Locke]
A man's labour gives ownership rights - as long as there are fair shares for all [Locke]
If a man mixes his labour with something in Nature, he thereby comes to own it [Locke]
Fountain water is everyone's, but a drawn pitcher of water has an owner [Locke]
Gathering natural fruits gives ownership; the consent of other people is irrelevant [Locke]
Mixing labour with a thing bestows ownership - as long as the thing is not wasted [Locke]
It is certain that injustice requires property, since it is a violation of the right to property [Locke]
Soldiers can be commanded to die, but not to hand over their money [Locke]
A man owns land if he cultivates it, to the limits of what he needs [Locke]
25. Social Practice / D. Justice / 1. Basis of justice
Justice is granting the equality which unequals deserve [Plato]
25. Social Practice / D. Justice / 2. The Law / a. Legal system
The aim of law is not restraint, but to make freedom possible [Locke]
25. Social Practice / D. Justice / 2. The Law / c. Natural law
It is only by a law of Nature that we can justify punishing foreigners [Locke]
25. Social Practice / D. Justice / 3. Punishment / a. Right to punish
Reparation and restraint are the only justifications for punishment [Locke]
Self-defence is natural, but not the punishment of superiors by inferiors [Locke]
Punishment should make crime a bad bargain, leading to repentance and deterrence [Locke]
25. Social Practice / E. Policies / 4. Taxation
The consent of the people is essential for any tax [Locke]
25. Social Practice / E. Policies / 5. Education / a. Aims of education
Intelligence is the result of rational teaching; true opinion can result from irrational persuasion [Plato]
25. Social Practice / E. Policies / 5. Education / b. Education principles
Dialectic is the highest and most important part of the curriculum [Plato]
Mathematics has the widest application of any subject on the curriculum [Plato]
To gain knowledge, turn away from the world of change, and focus on true goodness [Plato]
Bad governments prevent discussion, and discourage the study of virtue [Plato]
Children's games should channel their pleasures into adult activity [Plato]
Control of education is the key office of state, and should go to the best citizen [Plato]
25. Social Practice / E. Policies / 5. Education / c. Teaching
Only a great person can understand the essence of things, and an even greater person can teach it [Plato]
The best way to educate the young is not to rebuke them, but to set a good example [Plato]
Education is channelling a child's feelings into the right course before it understands why [Plato]
Compulsory intellectual work never remains in the mind [Plato]
Didactic education is hard work and achieves little [Plato]
25. Social Practice / F. Life Issues / 5. Sexual Morality
While sex is very pleasant, it should be in secret, as it looks contemptible [Plato]
26. Natural Theory / A. Speculations on Nature / 1. Nature
We are so far from understanding the workings of natural bodies that it is pointless to even try [Locke]
The cosmos must be unique, because it resembles the creator, who is unique [Plato]
The creator of the cosmos had no envy, and so wanted things to be as like himself as possible [Plato]
26. Natural Theory / A. Speculations on Nature / 2. Natural Purpose / a. Final purpose
Creation is not for you; you exist for the sake of creation [Plato]
26. Natural Theory / A. Speculations on Nature / 6. Early Matter Theories / d. The unlimited
The unlimited has no shape and is endless [Plato]
26. Natural Theory / A. Speculations on Nature / 6. Early Matter Theories / e. The One
Some things do not partake of the One [Plato]
The only movement possible for the One is in space or in alteration [Plato]
Everything partakes of the One in some way [Plato]
26. Natural Theory / A. Speculations on Nature / 6. Early Matter Theories / g. Atomism
We must consider the four basic shapes as too small to see, only becoming visible in large numbers [Plato]
26. Natural Theory / A. Speculations on Nature / 7. Later Matter Theories / a. Early Modern matter
I take 'matter' to be a body, excluding its extension in space and its shape [Locke]
26. Natural Theory / B. Natural Kinds / 3. Knowing Kinds
We distinguish species by their nominal essence, not by their real essence [Locke]
26. Natural Theory / B. Natural Kinds / 4. Source of Kinds
If we observe total regularity, there must be some unknown law and relationships controlling it [Locke]
26. Natural Theory / C. Causation / 1. Causation
There are two types of cause, the necessary and the divine [Plato]
26. Natural Theory / C. Causation / 2. Types of cause
Fancy being unable to distinguish a cause from its necessary background conditions! [Plato]
26. Natural Theory / C. Causation / 4. Naturalised causation
Causes are the substances which have the powers to produce action [Locke]
26. Natural Theory / D. Laws of Nature / 8. Scientific Essentialism / a. Scientific essentialism
If we knew the minute mechanics of hemlock, we could predict that it kills men [Locke]
26. Natural Theory / D. Laws of Nature / 8. Scientific Essentialism / b. Scientific necessity
Boyle and Locke believed corpuscular structures necessitate their powers of interaction [Locke, by Alexander,P]
The corpuscular hypothesis is the best explanation of the necessary connection and co-existence of powers [Locke]
We will only understand substance when we know the necessary connections between powers and qualities [Locke]
26. Natural Theory / D. Laws of Nature / 8. Scientific Essentialism / d. Knowing essences
We identify substances by supposing that groups of sensations arise from an essence [Locke]
Other spirits may exceed us in knowledge, by knowing the inward constitution of things [Locke]
27. Natural Reality / A. Classical Physics / 1. Mechanics / a. Explaining movement
Motion is just change of distance between two things [Locke]
27. Natural Reality / A. Classical Physics / 1. Mechanics / c. Forces
Boyle and Locke suspect forces of being occult [Locke, by Alexander,P]
An insurmountable force in a body keeps our hands apart when we handle it [Locke]
27. Natural Reality / C. Space / 5. Relational Space
We can locate the parts of the universe, but not the whole thing [Locke]
27. Natural Reality / D. Time / 2. Passage of Time / a. Experience of time
Heavenly movements gave us the idea of time, and caused us to inquire about the heavens [Plato]
27. Natural Reality / D. Time / 3. Parts of Time / a. Beginning of time
Almost everyone except Plato thinks that time could not have been generated [Plato, by Aristotle]
Time came into existence with the heavens, so that there will be a time when they can be dissolved [Plato]
27. Natural Reality / D. Time / 3. Parts of Time / b. Instants
An 'instant' is where we perceive no succession, and is the time of a single idea [Locke]
27. Natural Reality / D. Time / 3. Parts of Time / d. Measuring time
We can never show that two successive periods of time were equal [Locke]
27. Natural Reality / E. Cosmology / 1. Cosmology
Clearly the world is good, so its maker must have been concerned with the eternal, not with change [Plato]
If the Earth is spherical and in the centre, it is kept in place by universal symmetry, not by force [Plato]
27. Natural Reality / E. Cosmology / 3. The Beginning
If the prime origin is destroyed, it will not come into being again out of anything [Plato]
If the cosmos is an object of perception then it must be continually changing [Plato]
Movement is transmitted through everything, and it must have started with self-generated motion [Plato]
27. Natural Reality / G. Biology / 3. Evolution
It is inconceivable that unthinking matter could produce intelligence [Locke]
27. Natural Reality / G. Biology / 5. Species
The natural offspring of a lion is called a 'lion' (but what about the offspring of a king?) [Plato]
28. God / A. Divine Nature / 2. Divine Nature
Only divine things can always stay the same, and bodies are not like that [Plato]
Even the gods love play [Plato]
28. God / A. Divine Nature / 3. Divine Perfections
Gods are not lovers of wisdom, because they are already wise [Plato]
The mind of God is fully satisfied and happy with a vision of reality and truth [Plato]
28. God / A. Divine Nature / 4. Divine Contradictions
If Plato's God is immaterial, he will lack consciousness, wisdom, pleasure and movement, which are essential to him [Cicero on Plato]
28. God / A. Divine Nature / 6. Divine Morality / b. Euthyphro question
It seems that the gods love things because they are pious, rather than making them pious by loving them [Plato]
Is what is pious loved by the gods because it is pious, or is it pious because they love it? (the 'Euthyphro Question') [Plato]
28. God / A. Divine Nature / 6. Divine Morality / c. God is the good
God must be the epitome of goodness, and we can only approach a divine state by being as good as possible [Plato]
28. God / A. Divine Nature / 6. Divine Morality / d. God decrees morality
The finite and dependent should obey the supreme and infinite [Locke]
In 'The Laws', to obey the law is to be obey god [Plato, by MacIntyre]
28. God / B. Proving God / 1. Proof of God
God has given us no innate idea of himself [Locke]
28. God / B. Proving God / 2. Proofs of Reason / a. Ontological Proof
We couldn't discuss the non-existence of the One without knowledge of it [Plato]
28. God / B. Proving God / 3. Proofs of Evidence / a. Cosmological Proof
The only possible beginning for the endless motions of reality is something self-generated [Plato]
We exist, so there is Being, which requires eternal being [Locke]
Self-moving soul has to be the oldest thing there is [Plato]
Self-generating motion is clearly superior to all other kinds of motion [Plato]
28. God / B. Proving God / 3. Proofs of Evidence / b. Teleological Proof
Soul must be the cause of all the opposites, such as good and evil or beauty and ugliness [Plato]
If all the motions of nature reflect calculations of reason, then the best kind of soul must direct it [Plato]
28. God / B. Proving God / 3. Proofs of Evidence / e. Miracles
If miracles aim at producing belief, it is plausible that their events are very unusual [Locke]
28. God / C. Attitudes to God / 3. Deism
If the gods are non-existent or indifferent, why bother to deceive them? [Plato]
28. God / C. Attitudes to God / 4. God Reflects Humanity
We cannot conceive of God, so we have to think of Him as an immortal version of ourselves [Plato]
28. God / C. Attitudes to God / 5. Atheism
There isn't a single reason for positing the existence of immortal beings [Plato]
If astronomical movements are seen as necessary instead of by divine will, this leads to atheism [Plato]
29. Religion / A. Polytheistic Religion / 1. Animism
The heavens must be full of gods, controlling nature either externally or from within [Plato]
29. Religion / A. Polytheistic Religion / 4. Dualist Religion
There must be at least two souls controlling the cosmos, one doing good, the other the opposite [Plato]
29. Religion / D. Religious Issues / 2. Immortality / a. Immortality
Soul is always in motion, so it must be self-moving and immortal [Plato]
Whether the soul pre-exists our body depends on whether it contains the ultimate standard of reality [Plato]
29. Religion / D. Religious Issues / 2. Immortality / b. Soul
Something is unlikely to be immortal if it is imperfectly made from diverse parts [Plato]
29. Religion / D. Religious Issues / 2. Immortality / d. Heaven
Is the supreme reward for virtue to be drunk for eternity? [Plato]
29. Religion / D. Religious Issues / 3. Problem of Evil / a. Problem of Evil
There must always be some force of evil ranged against good [Plato]
29. Religion / D. Religious Issues / 3. Problem of Evil / d. Natural Evil
God is responsible for the good things, but we must look elsewhere for the cause of the bad things [Plato]