Combining Texts

All the ideas for 'Principia Mathematica', 'Thought' and 'Discourse on the Origin of Inequality'

expand these ideas     |    start again     |     specify just one area for these texts


113 ideas

1. Philosophy / D. Nature of Philosophy / 1. Philosophy
Philosophy must abstract from the senses [Newton]
2. Reason / A. Nature of Reason / 1. On Reason
Inference is never a conscious process [Harman]
2. Reason / A. Nature of Reason / 4. Aims of Reason
Reasoning might be defined in terms of its functional role, which is to produce knowledge [Harman]
2. Reason / A. Nature of Reason / 9. Limits of Reason
Reason leads to prudent selfishness, which overrules natural compassion [Rousseau]
If you believe that some of your beliefs are false, then at least one of your beliefs IS false [Harman]
5. Theory of Logic / A. Overview of Logic / 1. Overview of Logic
Any two states are logically linked, by being entailed by their conjunction [Harman]
5. Theory of Logic / A. Overview of Logic / 6. Classical Logic
Deductive logic is the only logic there is [Harman]
5. Theory of Logic / B. Logical Consequence / 5. Modus Ponens
You don't have to accept the conclusion of a valid argument [Harman]
5. Theory of Logic / E. Structures of Logic / 1. Logical Form
Our underlying predicates represent words in the language, not universal concepts [Harman]
Logical form is the part of a sentence structure which involves logical elements [Harman]
A theory of truth in a language must involve a theory of logical form [Harman]
6. Mathematics / A. Nature of Mathematics / 2. Geometry
Newton developed a kinematic approach to geometry [Newton, by Kitcher]
6. Mathematics / A. Nature of Mathematics / 5. The Infinite / l. Limits
Quantities and ratios which continually converge will eventually become equal [Newton]
8. Modes of Existence / C. Powers and Dispositions / 2. Powers as Basic
I suspect that each particle of bodies has attractive or repelling forces [Newton]
9. Objects / B. Unity of Objects / 1. Unifying an Object / b. Unifying aggregates
Particles mutually attract, and cohere at short distances [Newton]
9. Objects / C. Structure of Objects / 8. Parts of Objects / b. Sums of parts
The place of a thing is the sum of the places of its parts [Newton]
11. Knowledge Aims / A. Knowledge / 1. Knowledge
No one would bother to reason, and try to know things, without a desire for enjoyment [Rousseau]
11. Knowledge Aims / A. Knowledge / 4. Belief / e. Belief holism
You have to reaffirm all your beliefs when you make a logical inference [Harman]
12. Knowledge Sources / A. A Priori Knowledge / 8. A Priori as Analytic
Only lack of imagination makes us think that 'cats are animals' is analytic [Harman]
Analyticity is postulated because we can't imagine some things being true, but we may just lack imagination [Harman]
12. Knowledge Sources / E. Direct Knowledge / 4. Memory
Memories are not just preserved, they are constantly reinferred [Harman]
13. Knowledge Criteria / A. Justification Problems / 3. Internal or External / b. Pro-externalism
People's reasons for belief are rarely conscious [Harman]
13. Knowledge Criteria / B. Internal Justification / 3. Evidentialism / a. Evidence
We don't distinguish between accepting, and accepting as evidence [Harman]
13. Knowledge Criteria / B. Internal Justification / 5. Coherentism / a. Coherence as justification
In negative coherence theories, beliefs are prima facie justified, and don't need initial reasons [Harman, by Pollock/Cruz]
13. Knowledge Criteria / B. Internal Justification / 5. Coherentism / b. Pro-coherentism
Coherence avoids scepticism, because it doesn't rely on unprovable foundations [Harman]
14. Science / B. Scientific Theories / 6. Theory Holism
If you changed one of Newton's concepts you would destroy his whole system [Heisenberg on Newton]
14. Science / C. Induction / 1. Induction
Science deduces propositions from phenomena, and generalises them by induction [Newton]
14. Science / C. Induction / 2. Aims of Induction
Induction is an attempt to increase the coherence of our explanations [Harman]
14. Science / D. Explanation / 2. Types of Explanation / g. Causal explanations
We should admit only enough causes to explain a phenomenon, and no more [Newton]
Natural effects of the same kind should be assumed to have the same causes [Newton]
14. Science / D. Explanation / 2. Types of Explanation / k. Explanations by essence
From the phenomena, I can't deduce the reason for the properties of gravity [Newton]
15. Nature of Minds / C. Capacities of Minds / 5. Generalisation by mind
General ideas are purely intellectual; imagining them is immediately particular [Rousseau]
Only words can introduce general ideas into the mind [Rousseau]
16. Persons / C. Self-Awareness / 2. Knowing the Self
We see ourselves in the world as a map [Harman]
17. Mind and Body / B. Behaviourism / 2. Potential Behaviour
Defining dispositions is circular [Harman]
17. Mind and Body / E. Mind as Physical / 4. Connectionism
Could a cloud have a headache if its particles formed into the right pattern? [Harman]
18. Thought / B. Mechanics of Thought / 4. Language of Thought
Are there any meanings apart from in a language? [Harman]
18. Thought / D. Concepts / 5. Concepts and Language / a. Concepts and language
Language may aid thinking, but powerful thought was needed to produce language [Rousseau]
19. Language / A. Nature of Meaning / 1. Meaning
Speech acts, communication, representation and truth form a single theory [Harman]
19. Language / A. Nature of Meaning / 8. Synonymy
There is only similarity in meaning, never sameness in meaning [Harman]
19. Language / A. Nature of Meaning / 9. Ambiguity
Ambiguity is when different underlying truth-conditional structures have the same surface form [Harman]
19. Language / C. Assigning Meanings / 6. Truth-Conditions Semantics
Truth in a language is explained by how the structural elements of a sentence contribute to its truth conditions [Harman]
19. Language / D. Propositions / 1. Propositions
Sentences are different from propositions, since two sentences can express one proposition [Harman]
19. Language / E. Analyticity / 3. Analytic and Synthetic
The analytic/synthetic distinction is a silly division of thought into encyclopaedia and dictionary [Harman]
19. Language / F. Communication / 6. Interpreting Language / b. Indeterminate translation
Many predicates totally resist translation, so a universal underlying structure to languages is unlikely [Harman]
21. Aesthetics / A. Aesthetic Experience / 4. Beauty
Without love, what use is beauty? [Rousseau]
22. Metaethics / A. Ethics Foundations / 2. Source of Ethics / b. Rational ethics
Rational morality is OK for brainy people, but ordinary life can't rely on that [Rousseau]
22. Metaethics / C. The Good / 1. Goodness / h. Good as benefit
If we should not mistreat humans, it is mainly because of sentience, not rationality [Rousseau]
23. Ethics / B. Contract Ethics / 2. Golden Rule
The better Golden Rule is 'do good for yourself without harming others' [Rousseau]
23. Ethics / C. Virtue Theory / 3. Virtues / f. Compassion
The fact that we weep (e.g. in theatres) shows that we are naturally compassionate [Rousseau]
24. Political Theory / A. Basis of a State / 1. A People / a. Human distinctiveness
Humans are less distinguished from other animals by understanding, than by being free agents [Rousseau]
24. Political Theory / A. Basis of a State / 1. A People / b. The natural life
Most human ills are self-inflicted; the simple, solitary, regular natural life is good [Rousseau]
Is language a pre-requisite for society, or might it emerge afterwards? [Rousseau]
I doubt whether a savage person ever complains of life, or considers suicide [Rousseau]
Leisure led to envy, inequality, vice and revenge, which we now see in savages [Rousseau]
Primitive man was very gentle [Rousseau]
Our two starting principles are concern for self-interest, and compassion for others [Rousseau]
Savages avoid evil because they are calm, and never think of it (not because they know goodness) [Rousseau]
Savage men quietly pursue desires, without the havoc of modern frenzied imagination [Rousseau]
24. Political Theory / A. Basis of a State / 3. Natural Values / a. Natural freedom
A savage can steal fruit or a home, but there is no means of achieving obedience [Rousseau]
24. Political Theory / A. Basis of a State / 3. Natural Values / b. Natural equality
In a state of nature people are much more equal; it is society which increases inequalities [Rousseau]
It is against nature for children to rule old men, fools to rule the wise, and the rich to hog resources [Rousseau]
24. Political Theory / B. Nature of a State / 2. State Legitimacy / a. Sovereignty
People accept the right to be commanded, because they themselves wish to command [Rousseau]
24. Political Theory / B. Nature of a State / 5. Culture
We seem to have made individual progress since savagery, but actually the species has decayed [Rousseau]
24. Political Theory / C. Ruling a State / 4. Changing the State / c. Revolution
Revolutionaries usually confuse liberty with total freedom, and end up with heavier chains [Rousseau]
24. Political Theory / D. Ideologies / 5. Democracy / b. Consultation
Plebiscites are bad, because they exclude the leaders from crucial decisions [Rousseau]
24. Political Theory / D. Ideologies / 5. Democracy / c. Direct democracy
In a direct democracy, only the leaders should be able to propose new laws [Rousseau]
25. Social Practice / A. Freedoms / 1. Slavery
Enslaved peoples often boast of their condition, calling it a state of 'peace' [Rousseau]
If the child of a slave woman is born a slave, then a man is not born a man [Rousseau]
People must be made dependent before they can be enslaved [Rousseau]
25. Social Practice / A. Freedoms / 5. Freedom of lifestyle
Like rich food, liberty can ruin people who are too weak to cope with it [Rousseau]
25. Social Practice / B. Equalities / 1. Grounds of equality
Three stages of the state produce inequalities of wealth, power, and enslavement [Rousseau]
25. Social Practice / B. Equalities / 4. Economic equality
The pleasure of wealth and power is largely seeing others deprived of them [Rousseau]
25. Social Practice / C. Rights / 4. Property rights
Persuading other people that some land was 'owned' was the beginning of society [Rousseau]
What else could property arise from, but the labour people add to it? [Rousseau]
Land cultivation led to a general right of ownership, administered justly [Rousseau]
If we have a natural right to property, what exactly does 'belonging to' mean? [Rousseau]
25. Social Practice / D. Justice / 2. The Law / c. Natural law
Writers just propose natural law as the likely useful agreements among people [Rousseau]
25. Social Practice / D. Justice / 3. Punishment / b. Retribution for crime
Primitive people simply redressed the evil caused by violence, without thought of punishing [Rousseau]
25. Social Practice / E. Policies / 1. War / e. Peace
A state of war remains after a conquest, if the losers don't accept the winners [Rousseau]
25. Social Practice / F. Life Issues / 6. Animal Rights
Both men and animals are sentient, which should give the latter the right not to be mistreated [Rousseau]
26. Natural Theory / A. Speculations on Nature / 6. Early Matter Theories / c. Ultimate substances
Newton's four fundamentals are: space, time, matter and force [Newton, by Russell]
26. Natural Theory / A. Speculations on Nature / 7. Later Matter Theories / a. Early Modern matter
Mass is central to matter [Newton, by Hart,WD]
26. Natural Theory / A. Speculations on Nature / 7. Later Matter Theories / b. Corpuscles
An attraction of a body is the sum of the forces of their particles [Newton]
26. Natural Theory / B. Natural Kinds / 2. Defining Kinds
Men started with too few particular names, but later had too few natural kind names [Rousseau]
26. Natural Theory / C. Causation / 1. Causation
Newtonian causation is changes of motion resulting from collisions [Newton, by Baron/Miller]
26. Natural Theory / D. Laws of Nature / 6. Laws as Numerical
You have discovered that elliptical orbits result just from gravitation and planetary movement [Newton, by Leibniz]
We have given up substantial forms, and now aim for mathematical laws [Newton]
26. Natural Theory / D. Laws of Nature / 8. Scientific Essentialism / c. Essence and laws
I am not saying gravity is essential to bodies [Newton]
27. Natural Reality / A. Classical Physics / 1. Mechanics / a. Explaining movement
Newton reclassified vertical motion as violent, and unconstrained horizontal motion as natural [Newton, by Harré]
27. Natural Reality / A. Classical Physics / 1. Mechanics / b. Laws of motion
Inertia rejects the Aristotelian idea of things having natural states, to which they return [Newton, by Alexander,P]
1: Bodies rest, or move in straight lines, unless acted on by forces [Newton]
2: Change of motion is proportional to the force [Newton]
Newton's Third Law implies the conservation of momentum [Newton, by Papineau]
3: All actions of bodies have an equal and opposite reaction [Newton]
27. Natural Reality / A. Classical Physics / 1. Mechanics / c. Forces
Newton's idea of force acting over a long distance was very strange [Heisenberg on Newton]
Newton introduced forces other than by contact [Newton, by Papineau]
Newton's laws cover the effects of forces, but not their causes [Newton, by Papineau]
Newton's forces were accused of being the scholastics' real qualities [Pasnau on Newton]
I am studying the quantities and mathematics of forces, not their species or qualities [Newton]
The aim is to discover forces from motions, and use forces to demonstrate other phenomena [Newton]
27. Natural Reality / A. Classical Physics / 1. Mechanics / d. Gravity
Newton showed that falling to earth and orbiting the sun are essentially the same [Newton, by Ellis]
27. Natural Reality / A. Classical Physics / 2. Thermodynamics / c. Conservation of energy
Early Newtonians could not formulate conservation of energy, having no concept of potential energy [Newton, by Papineau]
27. Natural Reality / C. Space / 4. Substantival Space
Absolute space is independent, homogeneous and immovable [Newton]
27. Natural Reality / D. Time / 1. Nature of Time / a. Absolute time
Newton needs intervals of time, to define velocity and acceleration [Newton, by Le Poidevin]
Newton thought his laws of motion needed absolute time [Newton, by Bardon]
Time exists independently, and flows uniformly [Newton]
Absolute time, from its own nature, flows equably, without relation to anything external [Newton]
27. Natural Reality / D. Time / 2. Passage of Time / g. Time's arrow
Newtonian mechanics does not distinguish negative from positive values of time [Newton, by Coveney/Highfield]
27. Natural Reality / D. Time / 3. Parts of Time / d. Measuring time
If there is no uniform motion, we cannot exactly measure time [Newton]
27. Natural Reality / G. Biology / 3. Evolution
Small uninterrupted causes can have big effects [Rousseau]
28. God / A. Divine Nature / 3. Divine Perfections
If a perfect being does not rule the cosmos, it is not God [Newton]
28. God / B. Proving God / 3. Proofs of Evidence / b. Teleological Proof
The elegance of the solar system requires a powerful intellect as designer [Newton]