Combining Texts

All the ideas for 'Mahaprajnaparamitashastra', 'Preface to 'De Revolutionibus'' and 'Reflections on Knowledge, Truth and Ideas'

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6 ideas

2. Reason / D. Definition / 1. Definitions

19426	'Nominal' definitions just list distinguishing characteristics [Leibniz]
	Full Idea: A 'nominal' definition is nothing more than an enumeration of the sufficient distinguishing characteristics.
	From: Gottfried Leibniz (Reflections on Knowledge, Truth and Ideas [1684], p.284)
	A reaction: Not wholly clear. Are these actual distinguishing characteristics, or potential ones? Could DNA be part of a human's nominal definition (for an unidentified corpse, perhaps).

11. Knowledge Aims / A. Knowledge / 1. Knowledge

19424	Knowledge needs clarity, distinctness, and adequacy, and it should be intuitive [Leibniz]
	Full Idea: Knowledge is either obscure or clear; clear ideas are either indistinct or distinct; distinct ideas are either adequate or inadequate, symbolic or intuitive; perfect knowledge is that which is both adequate and intuitive.
	From: Gottfried Leibniz (Reflections on Knowledge, Truth and Ideas [1684], p.283)
	A reaction: This is Leibniz's expansion of Descartes's idea that knowledge rests on 'clear and distinct conceptions'. The ultimate target seems to be close to an Aristotelian 'real definition', which is comprehensive and precise. Does 'intuitive' mean coherent?

14. Science / D. Explanation / 2. Types of Explanation / e. Lawlike explanations

15282	Facts should be deducible from the theory and initial conditions, and prefer the simpler theory [Osiander, by Harré/Madden]
	Full Idea: The two positivist criteria for a scientific theory are that the facts must be deducible from the theory together with initial conditions, and if there is more than one theory the simplest must be chosen.
	From: report of Andreas Osiander (Preface to 'De Revolutionibus' [1543]) by Harré,R./Madden,E.H. - Causal Powers 7.I
	A reaction: Harré and Madden cite this as a famous early statement of positivism. It seems to combine Hempel and Lewis very concisely. Wrong, of course. It does not, though, appear to mention 'laws'.

18. Thought / C. Content / 2. Ideas

19427	True ideas represent what is possible; false ideas represent contradictions [Leibniz]
	Full Idea: An idea is true if what it represents is possible; false if the representation contains a contradiction.
	From: Gottfried Leibniz (Reflections on Knowledge, Truth and Ideas [1684], p.287)
	A reaction: Odd in the analytic tradition to talk of a single idea or concept (rather than a proposition or utterance) as being 'true'. But there is clearly a notion of valid or legitimate or useful concepts here. Hilbert said true just meant non-contradictory.

23. Ethics / C. Virtue Theory / 3. Virtues / a. Virtues

7903	The six perfections are giving, morality, patience, vigour, meditation, and wisdom [Nagarjuna]
	Full Idea: The six perfections are of giving, morality, patience, vigour, meditation, and wisdom.
	From: Nagarjuna (Mahaprajnaparamitashastra [c.120], 88)
	A reaction: What is 'morality', if giving is not part of it? I like patience and vigour being two of the virtues, which immediately implies an Aristotelian mean (which is always what is 'appropriate').

26. Natural Theory / C. Causation / 2. Types of cause

19425	In the schools the Four Causes are just lumped together in a very obscure way [Leibniz]
	Full Idea: In the schools the four causes are lumped together as material, formal, efficient, and final causes, but they have no clear definitions, and I would call such a judgment 'obscure'.
	From: Gottfried Leibniz (Reflections on Knowledge, Truth and Ideas [1684], p.283)
	A reaction: He picks this to illustrate what he means by 'obscure', so he must feel strongly about it. Elsewhere Leibniz embraces efficient and final causes, but says little of the other two. This immediately become clearer as the Four Modes of Explanation.