Combining Texts

All the ideas for 'The Evolution of Modern Metaphysics', 'The Structure of Science' and 'New system of communication of substances'

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8 ideas

1. Philosophy / E. Nature of Metaphysics / 1. Nature of Metaphysics

21959	Metaphysics is the most general attempt to make sense of things [Moore,AW]
	Full Idea: Metaphysics is the most general attempt to make sense of things.
	From: A.W. Moore (The Evolution of Modern Metaphysics [2012], Intro)
	A reaction: This is the first sentence of Moore's book, and a touchstone idea all the way through. It stands up well, because it says enough without committing to too much. I have to agree with it. It implies explanation as the key. I like generality too.

7. Existence / C. Structure of Existence / 2. Reduction

3425	Reduction has been defined as deriving one theory from another by logic and maths [Nagel,E, by Kim]
	Full Idea: Ernest Nagel defines reduction as the possibility of deriving all laws of one theory by logic and mathematics to another theory, with appropriate 'bridging principles' (either definitions, or empirical laws) connecting the expressions of the two theories.
	From: report of Ernest Nagel (The Structure of Science [1961]) by Jaegwon Kim - Philosophy of Mind p.213
	A reaction: This has been labelled as 'weak' reduction, where 'strong' reduction would be identity, as when lightning is reduced to electrical discharge. You reduce x by showing that it is y in disguise.

8. Modes of Existence / C. Powers and Dispositions / 4. Powers as Essence

13168	My formal unifying atoms are substantial forms, which are forces like appetites [Leibniz]
	Full Idea: To find real entities I had recourse to a unified formal atom. Hence I rehabilitated the substantial forms in a way to render them intelligible. I found that their nature consists in force, from which follows something analogous to sensation and appetite.
	From: Gottfried Leibniz (New system of communication of substances [1695], p.139)
	A reaction: [several lines are here compressed] This passage sums up the key to Leibniz's essentialism, which I take to be a connection between Aristotelian form and the physicists' notion of force. This gives us a modern version of Aristotelianism for science.

13169	I call Aristotle's entelechies 'primitive forces', which originate activity [Leibniz]
	Full Idea: Forms establish the true general principles of nature. Aristotle calls them 'first entelechies'; I call them, perhaps more intelligibly, 'primitive forces', which contain not only act or the completion of possibility, but also an original activity.
	From: Gottfried Leibniz (New system of communication of substances [1695], p.139)
	A reaction: As in Idea 13168, I take Leibniz to be unifying Aristotle with modern science, and offering an active view of nature in tune with modern scientific essentialism. Laws arise from primitive force, and are not imposed from without.

9. Objects / A. Existence of Objects / 5. Simples

13170	The analysis of things leads to atoms of substance, which found both composition and action [Leibniz]
	Full Idea: There are only atoms of substance, that is, real unities absolutely destitute of parts, which are the source of actions, the first absolute principles of the composition of things, and, as it were, the final elements in the analysis of substantial things.
	From: Gottfried Leibniz (New system of communication of substances [1695], p.142)
	A reaction: I like this because it addresses the pure issue of the identity of an individuated object, but also links it with an active view of nature, and not some mere inventory of objects.

9. Objects / B. Unity of Objects / 2. Substance / c. Types of substance

13171	Substance must necessarily involve progress and change [Leibniz]
	Full Idea: The nature of substance necessarily requires and essentially involves progress or change, without which it would not have the force to act.
	From: Gottfried Leibniz (New system of communication of substances [1695], p.144)
	A reaction: Bravo. Most metaphysical musings regarding 'substance' seem entirely wrapped up in the problem of pure identity, and forget about the role of objects in activity and change.

11. Knowledge Aims / C. Knowing Reality / 3. Idealism / b. Transcendental idealism

21958	Appearances are nothing beyond representations, which is transcendental ideality [Moore,AW]
	Full Idea: Appearances in general are nothing outside our representations, which is just what we mean by transcendental ideality.
	From: A.W. Moore (The Evolution of Modern Metaphysics [2012], B535/A507)

27. Natural Reality / A. Classical Physics / 1. Mechanics / c. Forces

13167	We need the metaphysical notion of force to explain mechanics, and not just extended mass [Leibniz]
	Full Idea: Considering 'extended mass' alone was not sufficient to explain the principles of mechanics and the laws of nature, but it is necessary to make use of the notion of 'force', which is very intelligible, despite belonging in the domain of metaphysics.
	From: Gottfried Leibniz (New system of communication of substances [1695], p.139)
	A reaction: We may find it surprising that force is a metaphysical concept, but that is worth pondering. It is a mysterious notion within physics. Notice the emphasis on what explains, and what is intelligible. He sees Descartes's system as too passive.