Combining Philosophers

Ideas for Lynch,MP/Glasgow,JM, Alan McMichael and David Hume

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19 ideas

12. Knowledge Sources / D. Empiricism / 1. Empiricism
Impressions are our livelier perceptions, Ideas the less lively ones [Hume]
     Full Idea: 'Impressions' are our more lively perceptions, when we hear, see, feel, love, hate, desire or will. 'Ideas' are less lively perceptions, when we reflect on any of those sensations or movements.
     From: David Hume (Enquiry Conc Human Understanding [1748], II.12)
All objects of enquiry are Relations of Ideas, or Matters of Fact [Hume]
     Full Idea: All objects of human reason or enquiry may naturally be divided into two kinds, to wit, Relations of Ideas, and Matters of Fact.
     From: David Hume (Enquiry Conc Human Understanding [1748], IV.I.20)
If books don't relate ideas or explain facts, commit them to the flames [Hume]
     Full Idea: If we take in hand any volume of divinity or metaphysics, ask 'Does it contain any abstract reasoning concerning quantity or number?' No. 'Or experimental reason on matters of fact and existence?' No. Commit it then to the flames.
     From: David Hume (Enquiry Conc Human Understanding [1748], XII.III.132)
A proposition cannot be intelligible or consistent, if the perceptions are not so [Hume]
     Full Idea: No proposition can be intelligible or consistent with regard to objects, which is not so with regard to perceptions.
     From: David Hume (Treatise of Human Nature, + Appendix [1740], Appendix)
     A reaction: An interesting variant on expressions of the empiricist principle. Presumably one can say intelligible things about Escher drawings.
All ideas are copies of impressions [Hume]
     Full Idea: All our ideas or more feeble perceptions are copies of our impressions or more lively ones.
     From: David Hume (Enquiry Conc Human Understanding [1748], II.13)
Hume is loose when he says perceptions of different strength are different species [Reid on Hume]
     Full Idea: When Hume divides all perceptions into two classes or species, distinguished by their degrees of force and vivacity, this is loose and unphilosophical. To differ in species is one thing, to differ in degree is another.
     From: comment on David Hume (Enquiry Conc Human Understanding [1748], II.12) by Thomas Reid - Essays on Intellectual Powers 1: Preliminary 1
     A reaction: This is Hume's 'impressions' and 'ideas'. As usual with Reid, this is a very astute criticism. Reid is a direct realist, so his solution is to view ideas as weakened impressions. If impressions are strong ideas, you get idealism (which is bad!).
All reasoning about facts is causal; nothing else goes beyond memory and senses [Hume]
     Full Idea: All reasonings concerning matters of fact seem to be founded on the relation of cause and effect. By means of that relation alone we can go beyond of our memory and senses.
     From: David Hume (Enquiry Conc Human Understanding [1748], IV.I.22)
12. Knowledge Sources / D. Empiricism / 2. Associationism
Associationism results from having to explain intentionality just with sense-data [Robinson,H on Hume]
     Full Idea: The limited theories of Berkeley and Hume have to be reductive, because they have to explain intentionality in terms of some kind of relation between sense-data; this predicament gives rise to the associationist accounts of psychology and meaning.
     From: comment on David Hume (Treatise of Human Nature [1739]) by Howard Robinson - Perception 1.4
     A reaction: An illuminating explanation. Robinson seems to be implying that we should accept something like Searle's 'intrinsic' intentionality as basic, rather than intentionality built up from smaller components as Hume and Dennett suggest.
All ideas are connected by Resemblance, Contiguity in time or place, and Cause and Effect [Hume]
     Full Idea: To me, there appear to be only three principles of connection between ideas, namely, Resemblance, Contiguity in time or place, and Cause or Effect.
     From: David Hume (Enquiry Conc Human Understanding [1748], III.19)
12. Knowledge Sources / D. Empiricism / 4. Pro-Empiricism
We cannot form the idea of something we haven't experienced [Hume]
     Full Idea: A blind man can form no notion of colours; a deaf man of sounds. ….A Laplander or Negro has no notion of the relish of wine. ….A man of mild manners can form no idea of inveterate revenge or cruelty.
     From: David Hume (Enquiry Conc Human Understanding [1748], II.15)
Only madmen dispute the authority of experience [Hume]
     Full Idea: None but a fool or a madman will ever pretend to dispute the authority of experience.
     From: David Hume (Enquiry Conc Human Understanding [1748], IV.II.31)
When definitions are pushed to the limit, only experience can make them precise [Hume]
     Full Idea: When we have pushed up definitions to the most simple ideas and still find some ambiguity and obscurity, how can we render them altogether precise and determinate? Produce the impressions or original sentiments from which the ideas were copied.
     From: David Hume (Enquiry Conc Human Understanding [1748], VII.I.49)
You couldn't reason at all if you lacked experience [Hume]
     Full Idea: An unexperienced reasoner could be no reasoner at all, were he absolutely unexperienced.
     From: David Hume (Enquiry Conc Human Understanding [1748], V.I.36 n.1)
How could Adam predict he would drown in water or burn in fire? [Hume]
     Full Idea: Adam, though his rational faculties be supposed, at the very first, entirely perfect, could not have inferred from the fluidity and transparency of water, that it would suffocate him, or from the light and warmth of fire that it would consume him.
     From: David Hume (Enquiry Conc Human Understanding [1748], IV.I.23)
We can only invent a golden mountain by combining experiences [Hume]
     Full Idea: The creative power of the mind amounts to no more than the faculty of compounding, transposing, augmenting or diminishing the materials afforded us by the sense or experience. For example, a golden mountain or a virtuous horse come from joining ideas.
     From: David Hume (Enquiry Conc Human Understanding [1748], II.13)
     A reaction: The example of the Golden Mountain comes from Aguinas Quodlibeta 8.2.1. The original idea is in Sextus Empiricus.
Events are baffling before experience, and obvious after experience [Hume]
     Full Idea: Every event, before experience, is equally difficult and incomprehensible; and every event, after experience, is equally easy and intelligible.
     From: David Hume (Dialogues Concerning Natural Religion [1751], Part 8)
     A reaction: If you don't believe this, spend some time watching documentaries about life in the deep oceans. Things beyond imagination swim around in front of you. But we can extrapolate, once the possibilities are revealed by experience.
12. Knowledge Sources / D. Empiricism / 5. Empiricism Critique
If a person had a gap in their experience of blue shades, they could imaginatively fill it in [Hume]
     Full Idea: Suppose a person to be perfectly acquainted with all colours, except one particular shade of blue. It must be possible for him to raise up from his own imagination the idea of that particular shade, though never conveyed to him by the senses.
     From: David Hume (Enquiry Conc Human Understanding [1748], II.16)
     A reaction: [compressed] He dismisses this as 'so singular it is scarcely worth observing', but it is crucial. It isn't 'singular'. We do it all the time, by extrapolating from experiences and interpolating between them. Thus we extend knowledge beyond experience.
Hume mistakenly lumps sensations and perceptions together as 'impressions' [Scruton on Hume]
     Full Idea: The greatest weakness in Hume's philosophy is his use of the term 'impression' to refer to both sensations and perceptions.
     From: comment on David Hume (Enquiry Conc Human Understanding [1748]) by Roger Scruton - Modern Philosophy:introduction and survey 24
Even Hume didn't include mathematics in his empiricism [Hume, by Kant]
     Full Idea: Even Hume did not make empiricism so universal as to include mathematics in it.
     From: report of David Hume (Treatise of Human Nature [1739]) by Immanuel Kant - Critique of Practical Reason Pref
     A reaction: Hume didn't actually exclude mathematics, and the notion of 'relations of ideas' is a pointer. Subsequent empiricist have offered promising accounts. Personally I like the idea that patterns are the key idea.