Combining Texts

All the ideas for 'fragments/reports', 'The Nature of Necessity' and 'Letters to Foucher'

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6 ideas

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

13095	Essence is primitive force, or a law of change [Leibniz]
	Full Idea: The essence of substances consists in the primitive force of action, or the law of the sequence of changes.
	From: Gottfried Leibniz (Letters to Foucher [1675], 1676)
	A reaction: [a 1676 note on Foucher's reply] It take these to be the two key distinctive Leibnizian contributions to the sort of metaphysic that is needed by modern science. Nature works with intrinsic essences, which are forces determining action.

10. Modality / E. Possible worlds / 1. Possible Worlds / d. Possible worlds actualism

18383	Plantinga says there is just this world, with possibilities expressed in propositions [Plantinga, by Armstrong]
	Full Idea: Plantinga rejects other possible worlds, but adds to our world an uncountable multitude of sets of propositions, each set a way that the world might have been, but is in fact not. (Roughly, for each Lewis world, Plantinga has such a set).
	From: report of Alvin Plantinga (The Nature of Necessity [1974]) by David M. Armstrong - Truth and Truthmakers 07.2
	A reaction: To me it seems as ontologically extravagant to postulate unexpressed propositions as to postulate concrete possible worlds. I think the best line is that there is just the actual world, with the possibilities implied in its dispositions.

10. Modality / E. Possible worlds / 3. Transworld Objects / b. Rigid designation

11891	Possibilities for an individual can only refer to that individual, in some possible world [Plantinga, by Mackie,P]
	Full Idea: Plantinga says for an individual to exist with certain properties in some possible world is simply for it to be true that, had that possible world obtained, that individual would have existed with those properties.
	From: report of Alvin Plantinga (The Nature of Necessity [1974]) by Penelope Mackie - How Things Might Have Been 5.1
	A reaction: This is intended to dissolve the problem of transworld identity, and is certainly a flat rejection of counterparts. I take the point to be that the individual is the key element in defining the possible world, so can't possibly be different.

21. Aesthetics / C. Artistic Issues / 7. Art and Morality

468	Musical performance can reveal a range of virtues [Damon of Ath.]
	Full Idea: In singing and playing the lyre, a boy will be likely to reveal not only courage and moderation, but also justice.
	From: Damon (fragments/reports [c.460 BCE], B4), quoted by (who?) - where?

26. Natural Theory / C. Causation / 9. General Causation / d. Causal necessity

2117	The connection in events enables us to successfully predict the future, so there must be a constant cause [Leibniz]
	Full Idea: There is a connection among our appearances that provides us the means to predict future appearances with success, and this connection must have a constant cause.
	From: Gottfried Leibniz (Letters to Foucher [1675])

28. God / B. Proving God / 2. Proofs of Reason / a. Ontological Proof

20704	A possible world contains a being of maximal greatness - which is existence in all worlds [Plantinga, by Davies,B]
	Full Idea: Plantinga reformulates Malcolm's argument thus: 1) There is a possible world in which there exists a being with maximal greatness, 2) A being has maximal greatness in a world only if it exists in every world.
	From: report of Alvin Plantinga (The Nature of Necessity [1974], p.213) by Brian Davies - Introduction to the Philosophy of Religion 4 'b Descartes'
	A reaction: This is only Plantinga's starting point, which says nothing about the nature of God, but only that this 'great' being exists in all worlds. I would like to know why it is a 'being' rather than a 'thing'. Malcolm says if it is possible it is necessary.